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Anastaziya [24]
3 years ago
9

1. What does the fossil record show?​

Biology
1 answer:
bagirrra123 [75]3 years ago
5 0

Answer:

The fossil record provides evidence that organisms from the past are not the same as those found today, and demonstrate a progression of evolution. Scientists date and categorize fossils to determine when the organisms lived relative to each other.

Explanation:

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Why does the relationship between metabolic rate and temperature exist?
Andre45 [30]
C.there is no relationship between metabolic rate and body temperature.
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3 years ago
Which parts of the amino acids x and y are involved in the formation of a peptide bond?
NeTakaya

Answer:

Carboxyl group and amino group.

Explanation:

Amino acids have three parts which are the carboxyl group, amino group and the side chain. When forming a peptide bond, the carboxyl group of one amino acid forms bonds with the amino group of the other one to form the peptide bonds between them.

I hope this answer helps.

6 0
3 years ago
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An allosteric protein demonstrates a decrease in its Kg for molecule Y as the concentration of molecule X increases. Based on th
djyliett [7]

Answer:

X is negative heterotropic modulator

Explanation:

In allosteric regulations, modulators are molecules that causes a change in the conformation of an enzyme, hence, resulting a change in enzyme activity. It can lead to a decrease or an increase of the enzyme.  When a molecule decreases the enzyme activity it called a negative modulator, when it increases or activates the enzyme activity, it is called a positive modulator.

A positive or negative modulator can either be homotrophic (substrate acts as modulator) or heterotropic (another ligand acts as modulator).

In the example above, X is negative heterotropic modulator, because the modulator is different from the substrate and it also decreases the enzyme activity.

4 0
3 years ago
Visual Check
aksik [14]

Answer:

They should all have purple flowers.

Explanation:

This is because plants use the reproduction called mitosis, which means that the child will be a direct copy of the parent.

Hope this helps! :)

8 0
2 years ago
In a food chain, why is it important for an organism to have different sources of food​
VMariaS [17]

Answer:

They need backups.

Explanation:

If the organism only has one food source they will use up that resource and eventually the organism will deplete due to lack of food.

7 0
3 years ago
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