In protozoa like Amoeba and Paramecium, an organ is found for osmoregulation which is:
1. Contractile vacuole
2. Mitochondria
3. Nucleus
4. Food vacuole
In which of the animal dimorphic nucleus is found:
1. Amoeba proteus
2. Trypanosoma gambiens
3. Plasmodium vivax
4. Paramecium caudatum
Which of the following unicellular organism has a macronucleus for trophic function and one or more micronuclei for reproduction:
1. Trypanosoma
2. Paramecium
3. Euglena
4. Amoeba