In this article we will discuss about the life history of termite with the help of a diagram. Fig. 255 TERMITE LIFE CYCLE 1. This is the life history of termite or white ant which is a colonial social insect exhibiting well developed cast system. 2. They are polymorphic insects with chewing type of mouth parts. 3. They feed on [...]
In this article we will discuss about the structure of Sucking Lice (Pediculus) with the help of a diagram. Fig. 249 HUMAN BODY LICE 1. These are commonly known as sucking lice or common human body lice and are ectoparasites on the bodies of human beings, where by they such blood and also act as disease vector for typhus [...]
In this article we will discuss about the structure of Planaria (Dugesia) with the help of a diagram. 1. Commonly called planaria and is a fresh water form of cosmopolitan distribution. 2. The body is elongated, flattened and some-what conical. 3. A distinct head is present, which is triangular in form and bears a pair of semicircular ocelli and a [...]