Once proteins have been produced at the ribosomes, what two organelles work together to aid in the secretion process described above?

Which statement best describes a keystone species? o a. it has littlelmenetic variation. it has an extremely high population. 0 b. 0 c. it remains unaffected by all environmental changes. od. it has a strong influence on the ecosystem. 0 e. it's the first species to populate a new ecosystem.

How many years would it take the atlantic ocean to grow 500 centimeters? show your work.

How do cells grow and reproduce to maintain homeostasis?