CAN SOMEBODY PLEASE HELP MEee

I would say C.

Explanation:

If you knew the diet of the animal or species and where it lands in the food web, you could lokk at the other species and get the diversity of the ecosystem.

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.

the answer is d.) homologous; have mammary glands