Sugar and salt are examples of soluble substances. Substances that do not dissolve in water are called insoluble. Sand and flour are examples of insoluble substances.
Chalk is insoluble - it does not dissolve in water.
Answer:
Sprite.
Explanation:
You can tell it hasn't dissolved because the bubbles inside the bottle have not gone away.
Give one example of how humans can affect the biosphere. How might that impact the other spheres in the Earth system?
Answer: Piling up our waste in landfills affects the geosphere. Pumping waste into the oceans harms the hydrosphere. And overfishing and habitat destruction can reduce the diversity of living things in the biosphere.
Explanation: Hope this helps and good luck :)
Name one disease spread by dust infection
What is the value of 7C2?
A. 15
o
B. 21
O C. 42
O D. 49
The answer
The nitrogen cycle is an example of a cycle. Its processes include the conversion of atmospheric nitrogen into ammonia, which is called Choose... . Nitrogen is returned to the atmosphere in the process of Choose...
Answer:
nitrogen fixation; denitrification
Explanation:
In a typical nitrogen cycle, the nitrogen in the atmosphere is converted into ammonia in a process known as nitrogen fixation. The ammonia is then converted into a usable form (nitrate or nitrite) for plants and other living organisms in a process known as nitrification. Nitrogen is returned to the atmosphere in a process known as denitrification.
Hence, the correct words to fill the gaps would be nitrogen fixation and denitrification.
The nitrogen cycle processes include the conversion of atmospheric nitrogen into ammonia, which is called:
Nitrogen FixationNitrogen is returned to the atmosphere in the process of:
DenitrificationNitrogen is an important element that is used by organisms in their respective habitat. Nitrogen cycle is the process of changing ammonia from nitrogen through a process called nitrogen fixation.
Denitrification is the process of returning nitrogen back to the atmosphere after it has been converted to ammonia.
Therefore, the correct answer is nitrogen fixation and denitrification
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Explain how a person can reduce their risk of coronary heart disease
Answer:
Eating a heart-healthy diet
Eating more protective foods like fruits, vegetables, whole grains, lean protein, fish, nuts, and olive oil. Limit or avoid sweets, fried foods, red and processed meats, and full-fat dairy products. Too much sodium can raise your blood pressure.
Explanation:
hope i helped
Help me please ASAP!
Answer:
2&4 are correct
Explanation:
hope this will help
Name the parts of the atoms. Include the charge, mass, and location of each.
Mitosis Notes
Biology
Interphase
• DNA is _________________ (# of chromosomes doubles)
• DNA appears as ______________________ (chromatin) at the start, but change to __________________________ at the end of this phase.
Prophase
• __________________________ (cell begins to divide)
• ___________________ appear and begin to move to __________________ ________________________ of cell (only in animal cells)
• ____________________________ form between the poles (made of microtubules)
• ____________________________ starts to disappear
Metaphase
• ________________________ attach to the spindle fibers at the ________________ of the cell.
Anaphase
• ______________________________ when the ____________________________ and begin to move to opposite ends of the cell (spindle fiber ___________________).
Telophase
• ______________________________________
• Chromosomes appear as ________________________
• Spindle fibers _______________________ and disappear
Cytokinesis
• Cell membrane moves inward to create __________________________ - each with its own nucleus with __________________________
Control of the Cell Cycle
• Controlled by enzymes called _________________ and _____________________________ _______________________
1. ________________________________ (G1): decide whether the cell will divide
2. ________________________________ (G2): checks DNA replication
3. ________________________________ (M): triggers exit from mitosis
Cancer
• ___________________ division of cells
• Cancer cells ______________________________ to the body’s control mechanisms.
Apoptosis
• Programmed ______________________________
• Cells that are no longer _____________________
• _________________ fingers and toes
• __________________ cells
• _________________ leaves
Stem Cells
• _______________________ cells that can be programmed to develop into ________________________ cells
• ______________________ - 100-150 stem cells
• Adult stem cells – also called __________________ stem cells
Answer:
the firat one is 24 i think....
Which subatomic particle determines an element's atomic number?
Answer: protons
Explanation: atoms of each element contain a characteristic number of protons
Answer:
the answer is protons
Explanation: Atoms of each element contain a characteristic number of protons. In fact, the number of protons determines what atom we are looking at (e.g., all atoms with six protons are carbon atoms); the number of protons in an atom is called the atomic number. In contrast, the number of neutrons for a given element can vary.
students set up a controlled experiment. they put up five crickets in each of three identical containers. they set one container to 15 degrees Celsius one to 20 degrees Celsius and one to 25 degrees Celsius then they count the number of chirps in each container during 1 hour
what is the manipulated variable in this experiment
a. the kind of container used
b. the temperature of each container
c. the number of cricket chirps
d. the number of crickets in each container
Answer:
the answer is B the temperature of each container
Which is a commodity someone might invest in?
A commodity that someone would invest in would be tea, coffee, and wine. Some of the more popular items people usually think of as a commodity.
the five pairs of ribs that do not
attach directly to the sternum
Answer: the false ribs. Which are the lower ribs.
Explanation:
The surface of the earth is divided into more than 50 large plates.? true or false?
Answer:
False
Explanation:
There are 7 major and 8 minor tectonic plates. There are certainly not fifty. There are only about 15.
Which of the following is NOT true about DNA?
O It is made up of nucleotides
O It creates energy for the cell
It stores and processes information in the cell
O It makes up the genes which contain genetic material
Whats TWO Answer Giving Brainliest To first Correct AnSwEr:D......... could it be D or C or C or B
Answer:
I'd think the Answer is A since usually people die from dehydration or a stroke. A or B in my opinion.
Explanation:
The Devils Hole pupfish is one of the world's rarest fishes, spending most of its life in the top few meters of very warm waters of a cavern located in the middle of the Mojave Desert. Devils Hole,
a geologic pool, is the only naturally occurring habitat for the endangered Devils Hole pupfish. This fish's habitat is one of the smallest natural ranges known for any vertebrate. Devils Hole is an
extreme environment, with water temperatures and dissolved oxygen concentrations near the lethal limits for most fish species.
Which of the following statements best explains why the Devils Hole pupfish are able to live in this environment?
Answer:
Thermal invasive
Explanation:
Devils Hole pupfish can live in this environment because they have adapted genes, which offer resistance to their bodies to the harsh environment where they live.
We can come to this answer because:
A living being can only live in an inhospitable environment if its organism allows for an adaptation.In this case, we can say that Devils Hole pupfish had a population with different genetic compositions, where some had genes adapted to this environment and others did not have these genes.Devils Hole pupfish that didn't have the adapted genes didn't resist the environment and died.The Devils Hole pupfish that possessed the genes survived and passed those genes on to their descendants.In this case, Devils Hole pupfish that received the genes adapted to the environment developed resistance that allows them to live amidst extreme resources.
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The oceans have become increasingly acidic in recent years as the water absorbs more and more carbon dioxide
from the atmosphere. This increased acidity interferes with the ability of corals to maintain their skeletons. In
addition, an increase in water temperatures worldwide is causing coral bleaching, another condition that threatens
the health of coral reefs.
Based on this information, which of the following would most improve the health of coral reefs?
Reducing the use of fossil fuels since they emit CO2 that reacts in water
CO2+H2O-->H2CO3
The following would most improve the health of coral reefs is reducing the use of fossil fuels.
What kills corals?One of the biggest threats to coral reefs is the so-called "coral bleaching", a process that leads to the death of hundreds of corals around the world. The phenomenon occurs when the temperature of the water increases, due to natural causes, such as El Niño, or caused by man, such as global warming.
Scientists have created a device that innovates the technique of transplanting corals from the recovery of fragments with tissue loss. The device works as a kind of cradle, where the fragments are kept until they recover and grow.
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#SPJ2
The surroundings where a particular species lives is known as its
The femoral is ____
to the tarsals.
rregion to the tarsals
Which of the following is not one of the following elements of hip-hop culture
Answer:
Yes you are correct
Explanation: The only answer would be graffitti art because that has nothing to do with the hip-hop culture.
Answer:
b
Explanation:
trust the rest is good it b
Explain the main differences between a petrol and a diesel engine
Answer:
The main difference between diesel and petrol engines is that petrol engines use spark plugs to ignite the air-fuel mixture, while diesel engines rely solely on heavily compressed air.
Explanation:
Brainliest please?
What does the peak of the dotted line represent?
What is the F2 generation? How do they differ from the F1 generation?
Answer:
F2 Generation is the Second Filial Generation
Explanation:
PLZ HELP ME 25 POINTS WILL GIVE BRAINLIEST
Answer:
G (:
Explanation:
Giving brainliest :}
humans have 46 chromosomes. the sperm and egg cell carry 23. I don't know the answer to the second im only in 9th grade and everything I answer is from the top of my head SORRYYY
The components that make up the genetic code are common to all organisms. If a segment of a gene contains 27 nucleotides, none of which are stop or starts codons, how many amino acids does this segment code for?
Answer:
9 amino acids
Explanation:
A segment of a gene that has 27 nucleotides will code for 9 amino acids.
Each codon on the gene potentially represents an amino acid and a codon is made up of 3 nucleotides each. Hence, in order to find out the total number of amino acids that a gene segment with 27 nucleotides can code for, the number of nucleotides should be divided by 3.
number of amino acids = number of nucleotides/3
27/3 = 9 codons/amino acids
Which of the following correctly describes the chemical reaction for cellular respiration?
F Glucose is broken down into water, Il water is used to convert oxygen to carbon
carbon dioxide, and energy
dioxide
G Carbon dioxide and water combine in the J Carbon dioxide is absorbed and oxygen
presence of sunlight to produce glucose is released
and oxygen
Answer:
the first one
Explanation:
cellular respiration= glucose + oxygen --> energy + water + CO2
will it be a, b, c, or d ??
Answer:
its D I know it is plssss
Complete the missing pieces of the biomolecule chart.
Now will need to be able to match all the information below to the correct biomolecule
Answer:
Answer are given below.
Explanation:
The main function of Carbohydrates to provide quick energy to the body. Examples of carbohydrates are sweet foods and drinks etc. The main function of Lipid is storing energy, signaling, and acting as structural components of cell membranes. The element present in lipids are carbon, hydrogen and oxygen, phosphorus, nitrogen and sulfur. Beef fat and heavy cream are the examples of lipids. Proteins are the substances that is responsible for building muscles. Amino acid is the monomer of proteins. Elements present in proteins are carbon, hydrogen, and oxygen atoms, nitrogen and sulfur atoms. The main function of nucleic acid is to provide storage for genetic information. Elements present in nucleic acid are carbon, hydrogen, oxygen, nitrogen and phosphorous. DNA and RNA are the examples of nucleic acid.
Which statement best explains the importance of enzymes lowering the activation energy necessary for reactions to take place?
a Reactions that require less energy to begin are able to occur more quickly.
b Reactions produce heat, causing the chemical bonds to become strong.
c Reactions are able to proceed slowly to maintain the metabolism of the cells.
d Reactions requiring less energy are able to produce less product.
Answer:
A
Explanation:
because a enzyme simply speeds up a reaction and only does that by pressure and stress not by doing chemical changes
The statement which best explains the importance of enzymes lowering the activation energy necessary for chemical reactions to take place is: A. Reactions that require less energy to begin are able to occur more quickly.
A chemical reaction can be defined as a chemical process which mainly involves the continuous transformation or rearrangement of the ionic, atomic or molecular structure of a chemical element through a break down and formation of chemical bonds, in order to produce a new chemical compound.
As a general rule, the activation energy of a chemical reaction must first of all be reached by its combining chemical elements (reactants) before it can start or begin.
An enzyme can be defined as a biological catalyst that is used to speed up (increase) or catalyze (accelerate) the rate of a chemical reaction, by lowering (decreasing) the activation energy of its constituent chemical elements (reactants).
Hence, a chemical reaction that only require less energy to begin (start) are able to occur more quickly before those that require high energy.
In conclusion, the activation energy of a chemical reaction should be lowered in order for it to occur or take place fast (quickly) enough over a short period of time.
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