Answer:A
Explanation:because is presenting the dominant allele
<span>The correct answer is option D.An ecosystem consists of a population of organisms and its physical environment, and a population is made up of many different communities of organisms. An ecosystem is a bilogical system of populations and environment. And a population consists many communities and finally the communities are nade up of organisms.</span>
D thought the cranial nerves that attach to it the spinal cord is involved in sensory and motor inner action of the head and neck