The epidermal pits in the middle of each segment of the earthworm contains _____

Frogs have a lymphatic system. True or false?

The cockroach body is covered by an exoskeleton made of __

In which of the following segments, setae are present?

Some of the squamous epithelial cells get specialised for the secretion and are called the glandular epithelium.

Where does fertilization occur for the earthworm?

What does the question mark in the given diagram represent?

What is the function of gizzard in earthworm?