Mitochondria :) your welcome
A control is the normal behavior you are testing the variable against. There are two types of variables. The independent variable is what you change to test what the dependent variable is, which is the variable that changes due to the independent variable, and what you generally record your data over.
The phrase 'some animals exhibit similar proteins' describes how biological chemicals provide evidence to support that life changes over time.
<h3>What is evolution?</h3>
Evolution refers to descendence with modification, which means that proteins are similar in related species.
Protein building blocks (amino acids) can also change over evolutionary time due to descendence with modification.
In conclusion, the phrase 'some animals exhibit similar proteins' describes how biological chemicals provide evidence to support that life changes over time.
Learn more about proteins here:
brainly.com/question/2526971
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