In this article we will discuss about the structure of Earthworm (Pheretima) with the help of a diagram. 1. It is commonly known as earthworm and is terrestrial and burrowing in habit. 2. Body bilaterally symmetrical, triploblastic and metamerically segmented. 3. No distinct head or appendage but a distinct prostomium is present. 4. Clitellumis present […]
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