Answer:
alleles
Explanation:
The traits an organism displays are ultimately determined by the genes it inherited from its parents, in other words by its genotype. Animals have two copies of all their chromosomes, one from each parent.
It is d because the law was passed around 1976 I am not sure but this is the best estimate
Answer: The statement that best describes cancer cells is option D.
I believe it is A. Primary succession starts with plants and rocks.