WebAn earthworm is a terrestrial invertebrate that belongs to the phylum Annelida.They exhibit a tube-within-a-tube body plan; they are externally segmented with corresponding internal segmentation; and they usually … Web1. Discuss the habit and habitat of earthworm. Ans: Earthworm is a burrowing animal usually live inside the soil surface in solitary. It burrows by ingesting soil from the mouth and liberate out from the anus on the soil surface as castings. # It feeds upon the dry or green leaves, dead materials, insect larvae, eggs, etc.

Explain the Reproductive System of Earthworm NCERT Biology Class …

Webbiology and ecology of earthworms and their potential effects on ecosystems through hands-on laboratory and field exercises. Lesson Plan 1: Earthworm Anatomy and Groups. In this lesson students will learn the basic anatomy of an earthworm, diagram their parts, and then learn about the three broad categories or groups. They will then WebEarthworms have long cylindrical body, segmented into 100-120 short segments. In a mature worm, segments 14-16 are covered by a prominent dark band of glandular tissue … north augusta gas prices

Earthworm: Morphology, Body Anatomy, Concepts, Questions and …

WebMar 17, 2024 · earthworm, also called angleworm, any one of more than 1,800 species of terrestrial worms of the class Oligochaeta (phylum Annelida)—in particular, members of the genus Lumbricus. Seventeen … WebExternal Anatomy of Earthworm: The body of Pheretima is nearly circular in cross-section and varies from 7 to 8 inches (18-19 cms) in length. The general colour of the body is brown but the dorsal surface is darker. A dark line extends from end to end in the mid-dorsal line. The anterior end of the body is pointed and the posterior end is blunt. WebFeb 16, 2024 · Earthworm: General characters, Distribution, External morphology, Structure and Arrangement of Setae Posted on : 16-02-2024 Posted by : Admin . Distribution. More than 3000 species of earthworms are distributed worldwide and many more are yet to be discovered. 18 families of class Oligochaeta have several general of … how to replace belt on whirlpool washer