Which are believed to be primitive relative of animals ?

What is true for all protozoans ? (A) are heterotrophs (B) they are either predators or parasites (C) hey are believed to be primitive relatives of animals (D) all of these

Assertion :- The protozoans are belived to be primitive relatives of animals. Reason :- Protozoans are heterotrophs and live as predators or parasites.

______are primitive relative of animals.

______are primitive relative of animals.

______are primitive relative of animals.

Which of the following is primitive tissue :

Which one is the most primitive molluse ?

Which of the following is primitive tissue :-