Earthworm

________, present in the stomach, neutralize the humic acid present in the humus.

________ exhibits a closed type of blood vascular system, consisting of blood vessels, capillaries, and the heart.

The ________ (eggs) are fertilized by the sperm cells within the cocoon which then slip off the worm and are deposited in or on the soil.

The alimentary canal is a(n) ________ that runs between the first to the last segment of the body.

A(n) ________ starts out as a funnel that collects excess fluid from the coelomic chamber.

________ regulate the volume and composition of body fluids.

________ are known as ‘friends of farmers because they make burrows in the soil and make it porous which helps in respiration and penetration of the developing plant roots.

preclitellar, clitellar and postclitellar segments