20. Involves protein channels diffusion and endocytosis
facilitated and molecular pumps
O facilitated and exocytosis
O Molecular and diffusion

16 select the correct answer from each drop-down menu. sharks, whales, and dolphins share similar features such as body shape and the position of fins. hoy while whales and dolphins have lungs. these differences indicate that the organisms share a comme whales also possess a vestigial pelvic bone. the presence of the pelvis bone may indicate that whales reset next