B. Gray squirrels
because in the food chain a primary consumer is an animal that feeds on plants; a herbivore.
the causes of most of them are unknown. Some birth defects are considered to be physical, while others are thought of as functional. Physical birth defects result in the malformation.
Studying cells helps us to construct better medicines and vaccines, which is beneficial to understanding life.
Explanation:
Yes they both contain atleast 2 chromosomes
