Multiple choice

Amoeba performs excretion through

  1. skin

  2. contractile vacuole and diffusion

  3. special organs

  4. pinocytosis

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Amoeba possesses a contractile vacuole for excretion and osmoregulation. Undigested food is excreted by exocytosis. Some wastes and CO2 are excreted through the plasma membrane by diffusion.