Digestive System of Earthworm
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…
Biology
Body Wall and Body Cavity of Earthworm
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.…
External Apertures of Earthworm
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…
External Features of Earthworm
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…
Control of Malaria
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…
Types of Malaria
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…
Life cycle in the Mosquito: Sporogony
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…
Erythrocytic or Endo-erythrocytic Cycle of Malarial Parasite
Each cryptomerozoite makes its way into a red blood corpuscle and feeds on its contents. After some time, Endo-erythrocytic Cycle of the parasite gets an…
Pre-erythrocytic Cycle of Malarial Parasite
The pre-erythrocytic cycle comprises the asexual reproduction of the parasite in the liver. When an infected female Anopheles mosquito bites a person, thousands of slender,…
Plasmodium in Human Body
Members of the genus Plasmodium are collectively known as ma-larial parasites. They cause a febrile disease called malaria. Malaria as a chill and fever disease…
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