The cockroach body is covered by an exoskeleton made of __

How many testes does Pheretima possess?

Which of the following cellular junctions create a cytoplasmic connection between adjoining cells?

Which of these is not a secondary lymphoid organ?

In which of the following places, the squamous epithelium is not found?

Identify the correct pathway of food ingested by an earthworm.

Which of these statements is true with respect to frog?

Frogs show sexual dimorphism. True or false?