In a population of squirrels in north carolina, the heritability for body weight is high. this means that a. body weight is primarily controlled by genes. b. the environment has little influence on body weight. c. the variance in body weight is mostly due to genetic variation. d. both a and b are correct.

c. the variance in body weight is mostly due to genetic variation

Explanation:

Heritability reflects the contribution of genes in the variations of a trait. A trait with high heritability means that the proportion of genetic variation in the trait is high and the environment has less effect on it.  

According to the given question, heritability for body weight in a population of squirrels in North Carolina is high. This means that the variations in the body weight among the individuals of that population are mostly genetic. Environmental factors have less impact on variation in body weight of that population.  

the answer to your question is b