3. Stratigraphy helps paleontologists understand the sequence of events in Earth's history.
A. What are two of the principles of stratigraphy? (4 points)
B. How is each principle used to make it easier for geologists to understand Earth's past? (6
points)

Answers

Answer 1

Answer:

Law of Superposition - This principle states that in a sequence of undisturbed sedimentary rocks, the oldest rocks are at the bottom and the youngest are at the top. This principle allows geologists to determine the relative ages of rocks and fossils based on their positions within the rock layers.

Principle of Original Horizontality - This principle states that sedimentary rocks are originally deposited in horizontal or nearly horizontal layers. Any deviations from this horizontal orientation are the result of subsequent geological events, such as folding or faulting. This principle allows geologists to identify rocks that have been tilted or overturned, which can provide clues to the tectonic history of an area.

B. The Law of Superposition and the Principle of Original Horizontality are used in the following ways to make it easier for geologists to understand Earth's past:

Dating of rocks and fossils - By applying the Law of Superposition, geologists can determine the relative ages of rocks and fossils within a sequence of sedimentary rocks. This information can be used to construct a geological time scale, which provides a chronological framework for Earth's history.

Interpretation of depositional environments - The Principle of Original Horizontality helps geologists to interpret the depositional environments in which sedimentary rocks were formed. By analyzing the sedimentary structures and fossils within the rocks, geologists can reconstruct the ancient environments in which they were deposited, such as river channels, deltas, or shallow marine environments.

Identification of geological events - Both principles can be used to identify geological events that have affected the sedimentary rocks, such as folding, faulting, and erosion. By analyzing the orientation of rock layers and the relationships between different rock units, geologists can reconstruct the geological history of an area and infer the types of tectonic forces that have shaped it.

Explanation:

Answer 2

Answer:

A. Two of the principles of stratigraphy are:

Law of Superposition: This principle states that in a sequence of rock layers, the oldest rocks are found at the bottom, and the youngest rocks are found at the top.

Principle of Faunal Succession: This principle states that different rock layers contain different fossil assemblages that succeed each other vertically in a predictable order.

B. Each principle is used to make it easier for geologists to understand Earth's past in the following ways:

Law of Superposition: This principle allows geologists to determine the relative ages of rock layers, even if they are not in the same location. By comparing the rock layers in different locations, geologists can create a timeline of Earth's history and understand how different events occurred in different places at different times.

Principle of Faunal Succession: This principle allows geologists to use fossils to date rock layers. By examining the fossil assemblages in different rock layers, geologists can determine the relative ages of those layers and create a more precise timeline of Earth's history. This principle is also useful for correlating rock layers between different locations, as similar fossil assemblages can indicate that two rock layers are of similar age.

Overall, the principles of stratigraphy provide geologists with a framework for understanding the sequence of events in Earth's history. By using these principles to analyze rock layers and fossils, geologists can create a more complete picture of the past and better understand how our planet has changed over time.

Explanation:


Related Questions

8. Which process charges metamorphic rock into sedimentary ro
9. Metamorphism inches the addition of
and
to pre-existing rocks,
10. Compaction & cementation of sedmerks/forms
11. Subiecting sedimentary rocks to extreme heat & pressure forms
12. Sdfiction of molten materials forms
tocks
13. Deposition and burial of sediments forms
14, Deposited sediments may be partides of which types of rock
15. Hest & Pressure acting on igneous rocks forms
16. Solid magma forms
17.
In order to form magma, what must happen to sedimentary,
metamorphic or igneous rocks?
18. For weathering & erosion to ocour, what process will the rock
usually go through first or at the same time?

Answers

Answer:

Metamorphism does not charge metamorphic rock into sedimentary rock. Metamorphic rocks are formed from pre-existing rocks through heat and pressure, while sedimentary rocks are formed from the accumulation of sediment.

Compaction and cementation of sediments forms sedimentary rock.

Subjecting sedimentary rocks to extreme heat and pressure can form metamorphic rocks.

Solidification of molten materials forms igneous rocks.

Deposition and burial of sediments can form sedimentary rocks.

Deposited sediments may be particles of various types of rock, including igneous, metamorphic, or other sedimentary rocks.

Heat and pressure acting on igneous rocks can form metamorphic rocks.

Solidification of magma can form igneous rocks.

In order to form magma, rocks must be subjected to high temperatures and pressures, typically through the process of melting in the Earth's mantle.

For weathering and erosion to occur, the rock will usually undergo physical or chemical breakdown first, which can be caused by exposure to water, wind, or other environmental factors. This can lead to the formation of sediment that can be transported and deposited elsewhere, eventually forming sedimentary rock.

Explanation:

Quadrat Quality

1. Draw Conclusions A classmate says that this is his one and only quadrat sample for a study of the grasshopper population in a 20-acre meadow. List the flaws in his sampling methods.

Answers

The flaws in your classmate's sampling method include:

Small Sample SizeUnrepresentative Sampling LocationLimited Sampling FrequencyLack of StandardizationLack of ReplicationBias toward visible grasshoppers

What is quadrat sampling?

Quadrat sampling is a technique for immediately counting the number of organisms in a portion (or sample) of the habitat. It is used to calculate population density, frequency, and dispersion estimates.

Quadrat positions may be selected at random or along a transect.

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1. Index fossils are useful tools for geologists.
A. What information can index fossils tell geologists? (4 points)
B. What are three characteristics of a good index fossil? (6 points)

Answers

Answer:

A. Index fossils are useful tools for geologists because they can provide information about the relative age of rocks and help to correlate rock formations across different locations. By identifying and dating the age of index fossils found in a particular rock layer, geologists can determine the approximate age of the rock layer and its correlation with other rock layers in the region.

B. Three characteristics of a good index fossil are:

Widespread distribution: A good index fossil should have a wide geographic distribution, which means that it should be found in multiple locations around the world. This helps to establish a correlation between different rock layers that contain the same index fossil.

Limited time range: A good index fossil should have a limited time range, meaning that it should have existed for a relatively short period. This allows geologists to narrow down the age range of the rock layer containing the fossil.

Easily recognizable: A good index fossil should be easily recognizable, even in small or fragmented pieces. This allows geologists to quickly identify and date the fossil, even if only a small portion of it is present in the rock layer.

Overall, a good index fossil should be distinctive, easily recognizable, have a wide distribution, and a limited time range, all of which can provide useful information for geologists studying the history of the Earth.

Explanation:

The stamen, pistil and petals are a part of which living thing?

Answers

Answer:

A flower

Explanation:

Question 8 (2 points)
What describes the unusually large release of plasma from the sun's corona? (2 points)
O a
Ob
Oc
Od
Aurora
CME
Solar flare
Solar wind
Question 9 (2 points)

Answers

The unusually large release of plasma from the sun's corona is described as a CME (coronal mass ejection).

What is CME (coronal mass ejection)?

A coronal mass ejection (CME) is a massive burst of solar wind and magnetic fields that are ejected from the sun's corona into space. These eruptions can release billions of tons of charged particles and plasma at speeds of several million miles per hour. When a CME collides with the Earth's magnetic field, it can cause geomagnetic storms, auroras, and other disruptions to our planet's space environment. CMEs can also have significant impacts on satellite and communication systems, as well as on power grids on the ground.

What is plasma?

plasma refers to the highly ionized gas consisting of a mixture of positively charged ions, negatively charged electrons, and neutral particles that are released from the sun's corona during a coronal mass ejection (CME).

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C + O2 = CO2. The __ carbon combines with the ___ oxygen to form the ___ carbon dioxide.

Answers

1,1,1

Explanation:

1 mole of carbon combines with 1 ,mole of oxygen to form 1 mole of carbondioxide

Data that is observable and non numerical

Answers

Answer:

Observable and non-numerical data is typically referred to as qualitative data. This type of data can be descriptive or categorical and is often collected through interviews, surveys, or observations. Examples of qualitative data include the color of a flower, the texture of a fabric, or the opinions expressed by individuals in a focus group.

Explanation:

PLS HELP I GIVE BRAINLIEST.

As you have learned in this lesson, arthropods are the largest phylum of animals. In this activity, you will need a notebook and a pencil or pen. You will investigate the natural surroundings of a place of your choice and search for critters in the arthropod phylum. Look under logs, rocks, in gardens, and other moist places. Each time you find one, if you know the name of it, write it down in a list. Otherwise, give it a name based upon its descriptive characteristics.

Place a tally mark next to an arthropod every time you find another of its kind, this way you can record how many of the same species you observe. Look in many different mini-habitats so you can find different types of arthropods.
Make careful observations about their body parts, the way they move, and how they respond when they notice your presence.

Answer the following questions:
Where did you find the most arthropods?
Which arthropod was most common in the areas you looked?
Which creatures did you find least often?

Answers

1. I found the most arthropods in a small forested area near a pond. There were so many different types of creatures to observe, it was incredible.
2. The most common arthropod I found was a type of beetle that had a shiny green carapace.
3. They were crawling all over the place! The creatures I found least often were a type of spider that was very small and hard to see. I only found a couple of them hiding under some leaves.

A plane is traveling 800 kph west. If the forces of lift, weight, thrust, and drag upon are in equilibrium for the whole time of the flight, what will the velocity of that plane be after three hours?

Answers

Answer is : 266.67

Explanation:
800kn=v • 3
V= 800km / 3
V= 266.67

What model of psychology represents a popular attempt at integration

Answers

Answer:

The model of psychology that represents a popular attempt at integration is the biopsychosocial model. This model proposes that psychological and behavioral factors are influenced by biological, psychological, and social factors, and that all of these factors interact with each other to shape human behavior and mental processes. It emphasizes the importance of understanding the interplay between biological, psychological, and social factors in order to develop a comprehensive understanding of mental health and illness. This model has gained popularity in recent years as a more holistic approach to psychology that integrates multiple perspectives and areas of study.

Explanation:

The volume of Uranus is less than one-tenth of the volume of Saturn.
(the subject does not so the science I needed so I just put biology)

Answers

The volume of Uranus is less than one-tenth of the volume of Saturn. This assertion is accurate.

What are the distinctions between Saturn and Uranus?

Despite having a smaller mass, Uranus has a slightly larger diameter than its neighbor, Neptune. Saturn is the least dense planet, making it the second least dense after that. The methane gas in Uranus' atmosphere gives the planet its bluish-green hue. The cloud tops of Uranus reflect sunlight back out of the atmosphere as it passes through them.

How similar are Saturn and Uranus?

Similarities Between Saturn and Uranus: The atmospheres of both planets are primarily made of hydrogen and helium. Each planet revolves around the Sun. Both have a core that is hotter. They both have several moons.

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The provided table shows the properties of four different sample materials. One of these materials is cork, a type of wood that floats on water (density of water = 1.00 g/cm3What is the density of cork in g/cm3Record and bubble in your answer on the answer document.

Answers

The density of cork can vary depending on factors such as its moisture content and the specific type of cork, but a typical range for the density of cork is around 0.24 to 0.32 g/cm3.

What is Density?

Density is a physical property of matter that describes how much mass is contained in a given volume of a substance.

Density = Mass / Volume

The standard unit of density is kilograms per cubic meter (kg/m3) in the International System of Units (SI), but it can also be expressed in grams per cubic centimeter (g/cm3) or other units.

However, based on the information you have provided, cork is a type of wood that floats on water, which means its density is less than that of water. The density of water is 1.00 g/cm3, so the density of cork must be less than 1.00 g/cm3 in order for it to float. In general, the density of cork can vary depending on factors such as its moisture content and the specific type of cork, but a typical range for the density of cork is around 0.24 to 0.32 g/cm3.

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can someone please help me, i dont know how to answer this. please give me pointers

Answers

Because, the passage itself describes about the nature of greenhouse effects. The greenhouse gases are absorbed by the soil. In order to protect the sensitive plants, we are going now for the modern greenhouse method i.e. artificial method. Transparent material which is nothing but like a sheet which covers the house is contructed to oppose the greenhouse gases to protect the plants. As the heat passes, some amount of heat won't escapes to atmosphere. This results in excess heat inside and leads the plants to die. Scientists say it's better to be the natural method of greenhouse effects.

1 2 3 a) Supply a suitable caption for this diagram b) Give labels of the parts numbered 1, 2, and 3. c) What process takes place in these structures? d) How are these structures mentioned in question 2(a), adapted to fulfill their functions? e) Where else in the body does the process take place?​

Answers

The caption for the diagram is the respiratory system

The parts labeled 1, 2, and 3 are:

bronchiolealveolialveolar sac

What are the adaptations of the bronchiole, alveoli, and alveolar sac to their functions?

The bronchioles, alveoli, and alveolar sacs are all structures within the respiratory system that are adapted to their specific functions:

Bronchioles: The bronchioles are small, branching tubes that lead from the larger bronchi to the alveoli. They have smooth muscle fibers that can contract or relax to adjust the airflow, ensuring that air is directed to where it is needed in the lungs.

Alveoli: The alveoli are small, thin-walled sacs at the end of the bronchioles where gas exchange takes place. They have a large surface area, which is achieved through the presence of many tiny air sacs. This maximizes the amount of gas exchange that can occur.

Alveolar sacs: The alveolar sacs are clusters of alveoli that are responsible for the majority of gas exchange in the lungs. They have a shape that allows them to accommodate a large volume of air, maximizing the amount of gas exchange that can occur.

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Anyone know how to solve this? It's biotechnology haha.

Answers

Based on the gel results, patient A has lower levels of the protein corresponding to standard IV in their blood.

The protein that is different in patient B is the one corresponding to the band that did not match with any of the standards. The fact that the band on the gel for patient B was smaller in size compared to the control band suggests that the protein is of smaller molecular weight than the standard.

What is the significance of the results of the protein levels for patients  A and B?

Since these are essential blood proteins, the difference in protein levels for both patients may have implications for their health.

For patient A, lower levels of the protein corresponding to standard IV may indicate a potential health issue related to the function of that protein.

For patient B, the difference in the size of the protein may indicate a mutation or alteration in the gene responsible for encoding that protein, which could lead to a functional difference or potential health issue. Further testing and analysis would be needed to determine the specific implications for each patient.

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Dr Lee has asked you to describe the diagnosis and risk factors of the disease to the patient. What would you tell Shino about her diagnosis

Answers

High 24-hour urine calcium levels and low vitamin D levels suggest that Shino's body is not absorbing the calcium needed to maintain bone mass. She also has a bone density scan score of -3 which is indicative of an osteoporosis diagnosis.

Describe the events in excitation contraction coupling

Answers

Answer:

cardiac contraction-excitation The sequence of occurrences, from the generation of an electrical impulse to the contraction of cardiac muscles, is referred to as coupling. This procedure is essential because it enables the heart to beat in a regulated manner without requiring conscious effort. With the help of EC coupling, the cardiac muscles sequentially contract, allowing blood to be pumped between 60 and 100 times per minute, first to the lungs and subsequently the rest of the body.

Explanation:

Jeannie was studying heredity and drew the illustration shown below.

Image

What is Jeannie showing with the dark lines inside each cell?

Answers

Anything that can be seen inside the nucleus of a cell. Proteins and DNA are organised into genes, which form a chromosome.

What are chromosomes and how many are there?

Chromosomes—threadlike structures made up of protein and a single DNA molecule—are used to carry genetic information from cell to cell. Chromosomes are housed in the nucleus of cells in both plants and animals, including humans.

Each cell normally has 23 pairs of chromosomes. Chromosomes, according to Sutton and Boveri's Chromosomal Theory of Inheritance, are the means by which genetic inheritance is conveyed. Rather, chromosomal behaviour includes segregation, independent assortment, and, on rare occasions, linkage; neither Mendelian genetics nor gene linkage are completely true.

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For the animal pictured in the boxes below, type at least 3 adaptions they have and explain how these adaptions help them survive in their environments

Answers

Answer:

Edmentum sucks

Explanation:

The organisms in a desert biome must have wide feet as as to wade through sand, this is not necessary in a tundra biome.

The term biome refer to a zone of life found on earth. The descriptions of tundra and desert biomes are shown as follows;

A tundra biome is a cold region in which trees are absent and living organisms have to survive under very cold conditions.

A desert biome is covered mostly with sand and has alternating hot and cold conditions in the day and in the night.

The organisms in a desert biome must have wide feet as as to wade through sand. This is not necessary in a tundra biome composed mostly of snow. Also, in a desert biome, organisms have hairy eyes to keep away sand. This is not required in a tundra biome.

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what happens to the frequency of non beneficial traits in the population over time in simple terms?

Answers

The frequency of non-beneficial traits in a population tends to decrease overtime due to natural selection. These traits do not provide any advantage to an organism in its environment, and may even be detrimental to its survival or reproduction.

Organisms with non-beneficial traits may be less likely to survive and reproduce, so their genes are less likely to be passed on to the next generation.

Which best explains how photosynthesis is helpful to humans?
Group of answer choices

It produces proteins, which humans can eat.

It provides oxygen for humans to breathe.

It increases the levels of carbon dioxide in the air.

It reduces the amount of harmful rays released by the sun.

Answers

It provides oxygen for humans to breath.

ACADEMIC STUDY ON NATURAL SELECTION, THIS IS NOT A TEST!!!

Answers

Answer is A. Wild population

Which of the following is true about photosynthesis?
A.
Chloroplasts release energy from the chemical bonds in sugar.
B. Chloroplasts convert light energy into chemical energy in the form of sugar.
C. Mitochondria convert light energy into chemical energy in the form of sugar.
D. Mitochondria release energy from the chemical bonds in sugar.

Answers

Answer:

B

Explanation:

Mitochondria both deal with cellular respiration, not photosynthesis, meaning that C and D are wrong. and if you look at the photosynthesis equation, it equals glucose = sugar

If having 8 repeats at loci 1 is found in 10 % of the US population, having 12 repeats at loci 2 is found in 5% of the US population, having 7 repeats at loci 3 is found in 10% of the US population, and having 5 repeats at loci 4 is found in 30% of the US population, if the US has a population of 300 million people, how many people in the US would have this DNA profile at those 4 loci?

Answers

This is an astronomically large number and suggests that it is highly unlikely for any two individuals to have the same DNA profile at these four loci.

What is DNA?

DNA (Deoxyribonucleic acid) is a long, complex molecule that contains the genetic instructions used in the development and function of all known living organisms and many viruses. It is often described as the "blueprint" or "code" of life. DNA is composed of four types of nucleotides, which are the building blocks of the DNA molecule. Each nucleotide contains a sugar molecule, a phosphate group, and a nitrogenous base (adenine, thymine, guanine, or cytosine). The sequence of these bases along the DNA molecule determines the genetic information it carries.

Here,

To determine the number of individuals in the US population that have a specific DNA profile at these four loci, we need to multiply the percentage of individuals with each genotype at each loci. Let's start by finding the number of individuals in the US population who have 8 repeats at loci 1. We know that 10% of the US population has this genotype, so:

Number of individuals with 8 repeats at loci 1 = 10% of 300 million

= 0.1 x 300,000,000

= 30,000,000

Similarly, we can find the number of individuals with 12 repeats at loci 2:

Number of individuals with 12 repeats at loci 2 = 5% of 300 million

= 0.05 x 300,000,000

= 15,000,000

For loci 3:

Number of individuals with 7 repeats at loci 3 = 10% of 300 million

= 0.1 x 300,000,000

= 30,000,000

And finally, for loci 4:

Number of individuals with 5 repeats at loci 4 = 30% of 300 million

= 0.3 x 300,000,000

= 90,000,000

To find the number of individuals with all four of these genotypes, we need to multiply these four values:

Number of individuals with all four genotypes = 30,000,000 x 15,000,000 x 30,000,000 x 90,000,000

= 3.87 x 10²⁵

This is an astronomically large number and suggests that it is highly unlikely for any two individuals to have the same DNA profile at these four loci. In practice, forensic DNA profiling typically looks at many more loci to increase the uniqueness of the DNA profile.

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A scientist collected the following data on algal growth during an experiment: Algal Growth Rates Water Temperature (°C) Time for population to double (hours) 10 69 15 58 20 36 25 44 30 52 35 71 40 78 Which of the following conclusions could be drawn from the data? A. Algae multiply most rapidly at 20°C. B. Algae multiply most slowly at 20°C. C. Algae multiply most slowly at 10°C. D. Algae multiply most rapidly at 35°C.

Answers

Based on the data provided, the conclusion that could be drawn is that algae multiply most rapidly at 35°C.

option D

What conclusions could be drawn from the data?

Looking at the data, we can see that the time for the population to double decreases as the temperature increases up until 40°C, where it reaches the lowest value of 36 hours. At 10°C, the time for population to double is 69 hours, which is the longest time of all the temperatures tested.

Therefore, we can eliminate options A and C as they suggest the opposite of what is observed in the data. Option B suggests that algae multiply most slowly at 20°C, but the data shows that algae multiply faster at this temperature than at 10°C, 25°C, and 30°C. Option D suggests that algae multiply most rapidly at 35°C.

Hence, the correct answer is that algae multiply most rapidly at 35°C.

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Which part of the body contains bile an enzyme that helps down lipids

Answers

Answer:

liver

Explanation:

The liver produces bile, a solution that helps you digest fats. The gallbladder stores bile. As fatty food enters the upper portion of your small intestine (the duodenum), the gallbladder squeezes bile into the small intestine through the bile ducts.

Below, a pre-mRNA is shown and the complete, edited mRNA is shown. a) in the complete mRNA, use a green pen or highlighter to highlight the methyl G cap. b) In the complete mRNA, use a red pen or highlighter to highlight the poly A tail. c) In both the pre-mRNA and complete mRNA, highlight each exon with diffeent colors, to show the pieces of pre m-RNA that are in both. Heres the pre-mRNA: AUGAACCCGGGACGCGCGAUGCCCUAUU. Heres the complete edited mRNA: GAUGAACCGCGCGAUAUUAAAAAAAAAAAAAAAA

Answers

a)Highlight the first nucleotide in green. b) Highlight the last several nucleotides (usually around 100-300 A nucleotides) in red. c) Three exons in pre-mRNA: "AUG", "ACCCGGGACGCGCGA", and "UGCCC".

What is mRNA?

Messenger ribonucleic acid is single-stranded molecule of RNA that corresponds to genetic sequence of gene.

a) Methyl G cap is added to the 5' end of the mRNA, so in the complete mRNA sequence "GAUGAACCGCGCGAUAUUAAAAAAAAAAAAAAAA",  first nucleotide is methylated guanine (methyl G) cap. Highlight the first nucleotide in green.

b) The poly A tail is added to the 3' end of mRNA, so in complete mRNA sequence "GAUGAACCGCGCGAUAUUAAAAAAAAAAAAAAAA", last several nucleotides are all adenine (A) nucleotides that make up the poly A tail. Highlight the last several nucleotides (usually around 100-300 A nucleotides) in red.

c) Exons are coding sequences of a gene that are kept and joined together after splicing, while introns are non-coding sequences that are removed. Based on given sequences, we can identify three exons in the pre-mRNA: "AUG", "ACCCGGGACGCGCGA", and "UGCCC". In complete mRNA, these three exons are joined together, and intron sequence "CUAUU" is removed.

To highlight exons, we can use three different colors. Let's use blue for  first exon "AUG", orange for second exon "ACCCGGGACGCGCGA", and pink for third exon "UGCCC".

In pre-mRNA: AUGAACCCGGGACGCGCGAUGCCCUAUU

Highlighted with different colors for exons:

AUGAACCCGGGACGCGCGAUGCCCUAUU

^^^^ blue ^^ orange ^^^^ pink ^^^^

In complete mRNA: GAUGAACCGCGCGAUAUUAAAAAAAAAAAAAAAA

Highlighted with different colors for exons:

GAUGAACCGCGCGAUAUUAAAAAAAAAAAAAAAA

^^^^ blue ^^ orange ^^^^ pink ^^^^

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Extraction of lipids from a tissue sample requires organic solvent because ________.

Answers

As organic solvents are readily available, they must be used for the extraction of lipids from tissue samples. Lipids are hydrophobic and can only be dissolved in organic solvents, which are inexpensive and keep the temperature low and controlled.

What is meant by organic solvents?The ability to dissolve or disperse one or more other compounds makes organic solvents a carbon-based chemical. Organic solvents may be neurotoxic, reproductively unsafe, and carcinogenic. Benzene, carbon tetrachloride, and trichloroethylene are examples of organic solvents that are carcinogenic. A few of the often used solvents are acetone, ethyl acetate, hexane, heptane, dichloromethane, methanol, ethanol, tetrahydrofuran, acetonitrile, dimethylformamide, toluene, and dimethylsulfoxide, among others. It is all natural. It is composed of the organic substance acetic acid. Yet, only 5% of vinegar is acetic acid; the remaining 95% is inorganic water. Rubing alcohol's main ingredient, isopropyl alcohol (isopropanol), which is frequently used as an organic solvent, can also be abused for intoxication purposes.

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what is the role of a scientist

Answers

To study the different parts of our planet and existence on earth and come up with theories on why its all here. Eg Why were all on earth and whats outside of what we have already found out. They try to come up with explanations on why everything exists. :)

All of the following are examples of environmental mutagens except

x-rays.

viruses. (Correct)

pesticides.

sunlight.

Answers

All of the following are examples of environmental mutagens except : sunlight as it does not pollute the environment.

What is meant by environmental mutagens?

Agents that can cause mutations in DNA and increase the frequency of mutations in a population is known as environmental mutagens. Examples of environmental mutagens are : x-rays, UV radiation, certain chemicals such as pesticides, and some naturally occurring substances like aflatoxins produced by fungi.

Mutagens are the substances that have the ability to change the genetic composition of a person / animal and these changes caused by mutagens are referred to as genetic mutations. Major target of mutagens is DNA.

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Other Questions
The data in 401K.RAW are a subset of data analyzed by Papke (1995) to study the relationship between participation in a 401(k) pension plan and the generosity of the plan. The variable prate is the percentage of eligible workers with an active account; this is the variable we would like to explain. The measure of generosity is the plan match rate, mrate. This variable gives the average amount the firm contributes to each worker's plan for each $1 contribution by the worker. For example, if mrate = 0.50, then a $1 contribution by the worker is matched by a 500 contribution by the firm.(i) Find the average participation rate and the average match rate in the sample of plans. what is the Phylum in leader The Florida Department of Agriculture & Consumer Services is investigating two proposals for increasing the capacity of the drainage canal in an agricultural region. i) Proposal A requires removing weeds and sediment that have accumulated during previous years. The dredging equipment costs $650,000 to purchase. The equipment is expected to have a 10-year life with a $17,000 salvage value. The annual operating costs are estimated to be $50,000. To control weeds in the canal, an additional $120,000 is required per year for the weed control program. ii) Proposal B is to line the canal with concrete at an initial cost of $4 million. The lining is assumed to be permanent, but maintenance will be required at a cost of $5,000 each year. In addition, lining repairs will be made every 5 years at a cost of $30,000. Compare the alternative using the EUAW with an interest rate of 5% per year. State which better alternative and provide one sentence explaining why. D. Bricks with uniform dimensions of 18 inches by 7 inchesare laid to form a wall such that the edge of a brick isaligned with the midpoint of the brick directly beneath it,as shown in the figure below. A brick may be cut in halfif the whole brick would extend beyond the end of thewall; in this case, the other half of the brick will be usedon the opposite end of the same row. To the nearest wholebrick, how many bricks are required to build a wall that is42 inches tall and 144 inches long? based on the results of the electrophoresis, what level(s) of the hemoglobin protein structure is/are altered in the sickled-cell condition? explain the basis for your answer. The minimum point of a quadratic curve is (8, -3). Write down the equation of the curve in the form y = (x + a) + b, where a and b are numbers. What are the values of a and b? Why does this exercise call for an older (5-day) culture of bacillus? What referents would you use to estimate the length, in both SI units and imperial units, of the Victoria (Old Traffic) Bridge in Saskatoon? Explain how you could measure the length in both units. Why does Ross say his highness is not well in Macbeth Where is the heat that the Cooling System is reducing generated from ? OA disadvantage of the concentrated targeting strategy is thatO a. production costs may be higher than with other strategies.Ob. marketing personnel may become dissatisfied with the limited opportunities provided by this approach.O c. the firm's financial condition is tied to a single and specialized marketing mix.O d. marketing costs are often higher than for other strategies.O e. large sales volumes cannot be generated. write an essay on the topic Teacher are more important than doctors Which of the following conditions might positively influence a community's wellness in the area of health care? A. The accessibility of grocery stores with healthy food options at an affordable price B. The availability and accessibility of hiking trails, parks, and outdoor fitness areas C. The convenience of doctor's offices and clinics with flexible operating hours D. The presence of libraries, tutoring centers, and continuing education programs a nurse reviews the medication list of an older adult upon transfer from an acute care to a long-term care facility. which method is appropriate to reduce the occurrence of adverse effects? ____________________ was a major religious, political, or social upheaval that took place in Europe and the British Isles during the 1500 and 1600s which led a surge in the population of the Thirteen colonies of the English Atlantic Seaboard.Group of answer choices1. Pontiac's Rebellion2. Protestant/English Reformations3. English Civil War4. French and Indian War5. 'The Crisis'6. Siege of Boston7. Braddock Expedition8. Dictatorship of Cromwell9. 39 Articles10. Battle of Quebec11. Thirty Years War Provide a good example of a free-rider problem subject. Describe whether this good satisfies the requirements for being a public good. Provide two potential remedies to the issue of this good's free riders. Create an argument of which you think is better. When a flower is placed in water, how do the nutrients in the water travel to the other parts of the plant?The plant absorbs the nutrients through the sunlight. Flowers are nonvascular, so nutrients do not need to travel. The nutrients move from cell to cell up to the other parts of the flower. The nutrients travel to the other parts of the flower through the tubes of the vascular system Please help I need all these answer by tonight The following events occur for The Turner Corporation during 2024 and 2025, its first two years of operations. June 12, 2024 Provide services to customers on account for $35,000. September 17, 2024 Receive $20,000 from customers on account. December 31, 2024 Estimate that 40% of accounts receivable at the end of the year will not be received. March 4, 2025 Provide services to customers on account for $50,000. May 20, 2025 Receive $10,000 from customers for services provided in 2024. July 2, 2025 Write off the remaining amounts owed from services provided in 2024. October 19, 2025 Receive $40,000 from customers for services provided in 2025. December 31, 2025 Estimate that 40% of accounts receivable at the end of the year will not be received. Required: 1. Record transactions for each date. 2. Post transactions to the following accounts: Cash, Accounts Receivable, and Allowance for Uncollectible Accounts. 3. Calculate net accounts receivable reported in the balance sheet at the end of 2024 and 2025 How to calculate July 2, 2025 Write off the remaining amounts owed from services provided in 2024. In triangle ABC, the length of side AB is 16 inches and the length of side BC is 25 inches. Which of the following could be the lengthof side AC?A. 29 inchesB. 46 inchesC. 43 inchesD. 7 inches