Answer:
activate memory cells is lymphocytes
engulf and digest pathogens is phagocytes
and produce antibodies is lymphocytes
Explanation:
The correct answer is mitochondria. Mitochondria is an organelle in the cell that corresponds to the function of the human lungs.It helps the lungs in the biochemical process of respiration and with the energy production (cellular respiration.)
I'm guessing changing gravity
Answer: billions of types of proteins