The buccal cavity of the earthworm leads to the _____

Clitellum is a __

Earthworm is an invertebrate.

The nuclei of columnar epithelial cells are located at the base.

Which segment of the earthworm contains the intestinal caecum?

By the use of which of the following structures, frogs capture food?

Which of these is true about antennae of cockroaches?

The fusion of how many segments makes up the head part of cockroach?