Someone help me answer these questions, I’ll give brainlyyyy :))

Biology

1 answer:

Gnesinka [82]3 years ago

7 0

1. The organisms at lower trophic levels have more consumable energy which provides the whale with more energy that organisms at other trophic levels.
2. Agree
3. Depending on the food chain, organisms can be on multiple trophic levels. For example, lions can be both a tertiary and secondary consumer.

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A bacterial culture is being tested for its ability to reduce nitrate. After incubation and growth of the bacteria in nitrate br

skelet666 [1.2K]

Answer:

All this combination of reactions is summarized in that the bacteria reduced nitrate, that is, they added protons to said compound, giving nitrite as a product.

By promoting the appearance of nitrite and that it increases in its concentrations when the zinc dust is thrown away, it becomes reddish since there was a change in pH, that is, the medium was acidified.

Explanation:

Some bacteria take nitrate as a source and end up generating an oxide reduction reaction that gives nitrite as a product, if this reaction advances in a chain, that is, the nitrite is reduced after the nitrate, the product in the future would be ammonia

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3 years ago

Which of these is most likely true for two organisms, A and B, in parasitism?

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In parasitism, one organism harms another organism (the host). An example would be fleas living in cats/dogs; they feed on their blood.

Therefore the answer is A is harmed, and B is helped.

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3 years ago

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Venus is often called the sister planet of Earth. Give three reasons that might explain this designation.

leva [86]

Venus is often called the sister planet of Earth because of its size, mass, and what its material its made of.

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3 years ago

Chymotrypsin

Georgia [21]

Answer: d. all of the above

Explanation:

Chymotrypsin is produced by the Pancreas and has the function of digesting proteins.It consists of three polypeptide chains connected by two inter-chain disulfide bridges. Chymotrypsin exerts an important biological function which is the hydrolysis of proteins in the small intestine. The cleavage of peptide bonds is selective, occurring only on the carboxyl side of aromatic side chains of tyrosine, tryptophan and phenylalanine, and large hydrophobic radicals such as methionine. Chymotrypsin also hydrolyzes ester

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3 years ago

A drought causes a wildfire which destroys a forest. Which Earth systems interact during this process? (1 point) Select one: a.

Ne4ueva [31]

Answer:

It is the biosphere and hydrosphere that interact when a drought causes a wildfire that destroys a forest. 

Explanation:

Hydrosphere consists of all the water bodies of earth like oceans, seas, rivers, lakes etc. a drought occurs due to scarcity of water which affects the hydrosphere. The scarcity of water causes plants and trees to dry up and become more prone to catching fire

Biosphere includes all the living organisms of the earth. It includes plants, trees, birds, insects, animals etc. A drought dries up a whole area and a small fire that starts up somewhere in a forest would then engulf the whole forest.

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3 years ago