Answer:
ans this question is no 3
Explanation:
Because it sends electrical output signals to the muscles affecting the muscles ability to functions.
Individuals of the same species have different traits because they have different genes which code for different proteins. B would be the correct option.
<h3>Variations</h3>
Organisms of the same species can have different traits due to a difference in their proteins.
Genes are responsible for proteins and proteins are an expression of traits. Thus, with different proteins come different traits.
Hence, once there is a difference in the DNA sequence of organisms, different proteins will be produced, and different traits will be expressed.
More on variations can be found here: brainly.com/question/17598399
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I think its called a <span>volcanic neck.</span>
Studies of populations that reveal correlations between dietary habits and disease incidence are epidemiological studies.
