Answer the following:
Which phylum onwards all phyla show tube within tube body plan?

Answer the following Which tissue forms protective coverings in the animal body.

Diagram-based questions: Observe the following diagram. Write the answer of the following questions: To which phylum does the animal included in the diagram ?

Answer the following questions: To which phylum does Cockroach belong? Justify your answer with scientific reasons.

Solve the following questions: Observe the following diagram. Write the answers of the following questions. To which phylum does the animal included in the diagram belong?

Answer the following: Name the phyla to which the following animal belong: Diploria

Answer the following State the larval stages of phylum Porifera.

Answer the following questions: When is a body said to be in motion ?

Answer the following: Name the phyla to which the following animal belong: Nereis

Answer the following questions: When is a body said to be at rest ?

Answer the following: Name the phyla to which the following animal belong: Catla