Taxonomy

The brain is formed of the supra pharyngeal ganglia (segment earthworm). It is a bilobed mass of nervous tissue situated on the dorsal wall of…

Excretion is the process of elimination of metabolic waste products from the body. In earthworm, excretion or excretory system is effected by minute paired tubes called…

In the body of earthworm there are two median longitudinal vessels. The dorsal longitudinal vessel runs above the alimentary canal. The ven-tral longitudinal vessel runs…

The digestive system runs as a straight tube from mouth to anus. The mouth is situated in the first segment. The mouth opens into the…

Earthworms are invertebrates. Their skin is permeable, allowing water to pass through. They must live in damp habitats or they will dry out and die.…

Earthworms are nocturnal animals. They lie in the burrows during the day and come out at night for food. Earthworm leaves the burrow only during…

Earthworms are nocturnal animals. Generally, they have a reddish-brown color with a cylindrical body. They lie in the burrows during the day and come out…

The control of malaria measures fall under the following three categories. Treatment of infected patient (1) Plasmodium does not produce antitoxins or antibodies in human…

The disease caused by Plasmodium is known as malarial fever. It is charcterised by recurring bouts of fever, each lasting several hours. The febrile condition…

When a female anopheles mosquito bites an infected person, it sucks blood along with all the stages of parasite. But in the gut of the…