Question

Holozoic unicellular organisms are

• A. Amoeba
• B. Paramoecium
• C. Both A and B
• D. Fish

Answer 1

The correct option is C Both A and B

• Holozoic unicellular organisms are those which can engulf the whole organism.
• Protozoans like an Amoeba, Paramecium from an invagination around the whole organism like bacteria and then form a small vesicle.
• This vesicle is then taken inside the cell and then vesicle is broken down to release the whole organism. Such a whole organism is utilized by protozoans as their food.
• The invaginations are formed by protozoans by forming pseudopodia (temporary projections of the cell).
  

Therefore, the correct answer is option C.