Answer:
B
Explanation:
The density of continental crust is 2.9 g/cm^3. Oceanic crust, while thinner, is made of mafic materials (Fe, Mg)-- mainly basalt
The diagram below represents two cells viewed using the same magnification with the same microscope. One possible conclusion that can be drawn about the activity of these two cells is that...
Answer:
more active transport occurs in cell A then cell B
Explanation:
hope this helps ;)
The possible conclusion that can be made drawn about the activity of these two cells is that more active transport occurs in cell A than in cell B. The correct option is B.
What is transport?Active transport is a type of transport that cells use to move molecules up and down cell membrane concentration gradients.
Moving actively is carried out using a variety of membrane proteins known as carrier proteins that are connected to an energy source, such as ATP, for example.
The energy needed to move molecules or ions up or down a concentration gradient is provided by the hydrolysis of ATP during this process, known as active transport. The other transport is passive transport, which is reverse.
Therefore, the correct option is B. more active transport occurs in cell A than in cell B.
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HELP PLEASE SHOW WORK
1. How many grams are there in 2.3 moles of C?
2. How many moles are there in 43 grams of aluminum?
3. How many atoms are there in 100.5 moles of U?
4. How many moles are there in 6.818 x 10 26atoms of Ne?
Answer:
1. 46grams
2. 5moles
3. 476 atoms
4. 6,995,268
The thin, protective mucous membrane composed of nonkeratinized stratified squamous epithelium with numerous goblet cells that is supported by areolar connective tissue is known
The conjunctiva is a thin transparent mucous epithelial membrane that lines the inner surface of the eyelids made up of goblet cells whose function is to protect the eyeball.
The conjunctiva is an almost transparent membrane that covers the white part of the eye, the sclera, and also the eyelids on the inside.
Its function is to protect the eyeball from external agents, although it also intervenes in the formation of tear components and in the immune defense of the eye.The conjunctival epithelium is a non-keratinized squamous stratified epithelium like the corneal epithelium but contains mucin-secreting goblet cells that maintain the tear layer.Therefore, we can conclude that the conjunctiva is a mucous membrane that is formed by non-keratinized squamous epithelium whose function is protective and lubricant.
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If a true-breeding tall pea plant is crossed with a true-breeding dwarf pea plant and all of the offspring are tall plants, the trait tall plant is:
Answer:
It is dominant over "dwarf plant."
Explanation:
If a true-breeding tall pea plant is crossed with a true-breeding dwarf pea plant and all of the offspring are tall plants, the trait tall plant is it is dominant over "dwarf plant."
What is dominant traits?Dominant traits are always explained when the related allele has dominant, even if only one copy of the dominant trait exists. Recessive traits are expressed only if both the connected alleles are recessive.
The frequency of expression of dominant and recessive traits can be Dominant traits = always / Recessive = sometimes.
According to the question if there is self cross TT×tt then there is TT, Tt, Tt and tt, which means there is a 75% possibility of dominant trait and 25% recessive.
A dominant trait has an inherited trait or characteristic that appears in an offspring and covers the effects of another allele and/or prevails or exhibit its trait above another.
Therefore, If a true-breeding tall pea plant is crossed with a true-breeding dwarf pea plant and all of the offspring are tall plants, the trait tall plant is it is dominant over "dwarf plant."
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Which of the following is the best statement comparing the water of today with the water
that was here 100 million years ago? (1 point)
A) Water enters and leaves Earth duing evaporation and precipitation cycles.
B) The water present on Earth today is made of the same atoms but the molecules
have been recycled through biologic activity.
C)The atoms that made the water then were destroyed when they were used; the
atoms that make up water now were made more recently.
D)The molecules of water then are the same molecules that exist today.
Answer:
A. Water enters and leaves Earth during evaporation and precipitation cycles.
Explanation:
Answer:
B
Explanation:
C is wrong because, atoms cannot be destroyed or made according to the law of conservation of mass. D is wrong because water goes through many processes, like A states, but both are wrong because B is the most correct.
Why are crystals in minerals formed from magma larger than mineral crystals formed from lava?
Answer:
Magma cools slowly inside Earth, which gives mineral crystals time to grow large enough to be seen clearly. Lava cools much more rapidly than magma when it is below the surface. In a cooling lava, mineral crystals do not have time to form and are very small.
which mechanism of action is being described when an antibiotic drug causes the destruction of bacterial cell walls
The mechanism of action described when an antibiotic drug causes the destruction of bacterial cell walls is NONSELECTIVE INTERACTION. These drugs do not interact with specific molecules.
Nonselective drugs are involved in nonselective interactions, i.e., they act on a variety of receptors and/or enzymes.
Nonselective drugs can target different cellular structures (e.g., bacterial cell walls) and/or metabolic processes.
For example, Phenocybenzamine is a nonselective drug that can affect different receptors, which is used for the treatment of high blood pressure and sweating associated with pheochromocytoma.
Conversely, enzymes are biological catalysts that speed up chemical reactions by selectively interacting with specific ligands (i.e., substrates).
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I NEED HELP IDENTIFYING THE STAGES!!! PLZ HELP!!!
Interphase, Prophase, Metaphase, Anaphase, or Telophase
Answer:
prophase
Explanation:
compare the plants that live in deserts with the plants that live in the tundra biome.
Answer:
Both desert and tundra plants grow and flower quickly in the short growing season.
Desert plants have special structures that allow them to trap and store water.
Tundra plants grow low to the ground to stay out of the cold and dry wind.
Plants in the desert and tundra both develop and bloom swiftly. Plants in the desert have unique that enable them to capture and store water. To avoid the cold, dry wind, tundra plants grow low to the earth.
What is in the tundra biome?Tundra is the coldest biome of all of them. The Finnish name for tundra is tunturi, which meaning treeless plain. It is well known for having landscapes that have been formed by frost, very cold temperatures, little precipitation, insufficient nutrients, and short growth seasons. A dead organic substance acts as a source of nutrients.
What are the characteristics of the tundra biome?Tundra habitats, which are defined by their lack of plants and severe environments with minimal rainfall, are found in the Arctic and on mountain summits. The majority of the year, tundra areas are covered in snow, but the summer brings bursts of wildflowers.
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according to the hydrologic cycle, once precipitation has fallen on land, what paths might the water directly take?
Answer:
it either soaks into the ground, infiltration, flows over the surface as runoff, or immediately evaporates.
If a cell being observed has been magnified 200x under the HPO with a magnification of 40x, what is the magnifying power of the eyepiece used?
Answer:
5x
Explanation:
I hope this helps you!
will you be able to synthesize both strand of the dna helix in a continuous manner?
Answer:
No.
Explanation:
There are two strands in DNA -i)Leading strand
ii)lagging strand.
Replication of the leading DNA strand is continuous, while replication along the lagging strand is discontinuous. After a short length of the DNA has been unwound, synthesis must proceed in the 5' to 3' direction; that is, in the direction opposite that of the unwinding.
No, we will not be able to synthesize both strand of the dna helix in a continuous manner because the lagging strand synthesize in a discontinuous manner.
What is the process of DNA synthesize?The biological process of creating two identical copies of DNA from a single original DNA molecule is known as DNA replication. All living things replicate their DNA, which is the most crucial component of biological inheritance.
Continuous DNA synthesis takes place on the leading strand. As the helix unwinds, DNA synthesis on the lagging strand restarts numerous times, resulting in numerous brief pieces known as "Okazaki fragments," which are then joined by DNA ligase to form a single DNA molecule.
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Describe a freshwater biome.
Define a wetland.
Why do wetlands have high biodiversity?
A developer wants to extend a golf course into a wetland. Outline environmental arguments you could make against this plan.
Freshwater biomes are large communities of plants and animals centered around waters with less than 1% salt concentration. They are very important to survival on Earth. Types of freshwater biomes include ponds, lakes, streams, rivers, and even some wetlands. Wetlands are not always considered freshwater biomes because they usually have too high of a salt content.
2.
Wetlands are areas where water covers the soil, or is present either at or near the surface of the soil all year or for varying periods of time during the year.
3.
Wetlands have been called “biological super systems” because they produce great volumes of food that support a remarkable level of biodiversity. In terms of number and variety of species supported, they are as rich as rainforests and coral reefs.
sorry last question i don't no
dna is cut at __ sequences by restriction enzymes.
Answer:
the
Explanation:
DNA which is a genetic material is cut at restriction site or Target sequence
What is restriction enzymes?Restriction enzymes refers to protein that is produce by bacteria and recognizes a DNA by cleaving to it and cuts the DNA only at that specific site, which is known as restriction site or target sequence.
DNA is the genetic constituent of a living organism.
Therefore, DNA is cut at restriction site or Target sequence
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The movement of water dissolved minerals , and food and other organic molecules in a plant is called
pls helppppppppppp really need help
Answer:
16: Genes
17: Proteins
18: Offspring
19: Blueprint
20: Code, Dna, Rna
Explanation:
I hope this helps :)
if the population of insects decreases, which other population will decrease the most?
a. badgers
b. lizards
c. sage brush
d. squirrels
Answer:
lizards is the anwser. lol
write the function of these in your body. carbohydrates, protein, vitamin
Answer:
Carbohydrates- is the main source of energy of your body. They help you fuel your brain, kidneys, heart muscles, and central nervous system.
Protein- A lot of your body is protein. Your muscles are just about all protein, and most of your organs are protein. Many of the chemical reactions in your body are speeded up by other types of protein. Your body can make some of the components of protein by itself, and it must get some of the components from outside of the body.
You need protein daily for your tissue to repair itself, normal function, and perhaps to grow.
Vitamin- Vitamins allow your body to grow and develop. They also play important roles in bodily functions such as metabolism, immunity and digestion.
Which of the following contains polar bonds? only one answer
sodium fluoride
nitrogen molecules ,
water molecules
magnesium chloride
Answer:
it's water molecules
Explanation:
Polar bonds are intermediate between pure covalent bonds and ionic bonds. They form when the electronegativity difference between the anion and cation is between 0.4 and 1.7. Examples of molecules with polar bonds include water, hydrogen fluoride, sulfur dioxide, and ammonia
which transcription factor binds directly to the tata-box sequence?
The transcription factor that binds directly to the tata-box sequence is TFIID. This transcription factor (TFIID) is a macromolecular protein complex.
The TATA box is a fundamental nucleotide gene sequence that forms the eukaryotic core promoters, which are required to initiate transcription.
TFIID is a macromolecular protein complex (also called the RNA polymerase II preinitiation complex), which acts as a general transcription factor during the initiation of eukaryotic transcription.
TFIID recognizes and binds to the TATA box (core promoter) and also binds with different activator and repressor proteins in order to regulate the transcriptional activity.
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What is the difference between structural and compositional layers of the Earth's
interior?
Answer:
The Earth has different compositional and mechanical layers. Compositional layers are determined by their components, while mechanical layers are determined by their physical properties. The outermost solid layer of a rocky planet or natural satellite. The Earth has an outer core (liquid) and an inner core (solid).
Explanation:
hope this helps and have a great day
What would most likely happen in the ecosystem shown in the above food web if the zooplankton population significantly decreased?
A.
The shrimp population would decrease.
B.
The sperm whale population would increase.
C.
The squid population would increase.
D.
The phytoplankton population would decrease.
Answer:
A.
The shrimp population would decrease.
GIVE BRAINLIEST PLZZ :)
Answer : A.
The shrimp population would decrease.
Explanation: Advice: Do not steal points. Also could you give me a brainliest?
how does the flow rate through capillaries affect the gas exchange rate between the blood in capillaries and interstitial fluid?
Answer:
the gas starts to bow
Explanation:
The flow rate through capillaries affect the gas exchange rate between the blood in capillaries and interstitial fluid by gas starts to blow.
What is interstitial fluid?In terms of nutrition, interstitial fluid serves as a sort of refueling station for our cells. Salt, fatty acids, glucose, and minerals like calcium, magnesium, and potassium are all present in interstitial fluid.
Blood capillaries are where the nutrients in interstitial fluid are obtained. Additionally, metabolic waste products can be stored in interstitial fluid.
A continuous glucose monitor will use a formula to offer a near estimate of what our blood glucose level is likely to be at that particular moment because the glucose level in interstitial fluid is not exactly the same as that in our blood.
Therefore, The flow rate through capillaries affect the gas exchange rate between the blood in capillaries and interstitial fluid by gas starts to blow.
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in the past century the concentration of carbon dioxide in the atmosphere has been increasing steadily describe an effect this might have on earths climate
Answer:
That is causing global warming. It is causing the sea level to rise and it is also making hurricane stronger.
Explanation:
Explain how the surface area and volume of a cell are related to molecule transport through the cell membrane.
Think about filling a small room and a large room with people. Which room takes less time to fill?
Answer:
Explanation:
I really wish to help but if you need help with that question it can be found on the internet
Plants from two different true-breeding P generation lines are crossed to one another and produce offspring. These offspring are allowed to self-fertilize, which results in production of the:
Answer:
F2 generation
Explanation:
4. Which areas seem to be most highly and quickly affected by a continued increase in
carbon emissions?
Answer: The atmosphere will be hit hardest by the increase in carbon. As the amount of carbon increases, it leads to increased warming of the atmosphere. Rising temperatures also increase the rate of evaporation, creating a more humid atmosphere and creating a virtuous cycle of warming.
This increase is beneficial as the Earth freezes due to the absence of carbon dioxide and other greenhouse gases in the air.
(sorry for my over-use of the the word increase)
You’re pretty Without (c)
You are du(m)b
I am a muscle located behind your lungs. I am always moving,
and I never get tired. I pump blood to all parts of your body.
What am I?
which is smaller organ from heart and muscle tissue
Answer:
small instestine...
.
....