Mark the correct one regarding typhlosole.

What is the scientific name of the South Indian earthworm?

Comment upon the gametic exchange in earthworm during mating. Discuss the physiology of reproduction in earthworms.

Locomotion in earthworm is directly facilitated by

Identify the incorrect statements among the following:
$(a)$ In earthworm,a single male genital pore is present.
$(b)$ Setae help in locomotion of earthworm.
$(c)$ The muscular layer in the body wall of earthworm is made up of only circular muscles.
$(d)$ Typhlosole is a part of the intestine of earthworm.

Explain the digestive tract of an earthworm with a diagram.