In this article we will discuss about:- 1. Habitat of Earthworm 2. Alimentary System of Earthworm 3. Circulatory System 4. Respiratory System 5. Nervous System 6. Excretory System 7. Reproductive System 8. Life-History. Contents: Habitat of Earthworm Alimentary System of Earthworm Circulatory System of Earthworm Respiratory System of Earthworm Nervous System of Earthworm Excretory System of Earthworm Reproductive System in [...]
The following points highlight the two beneficial insects for us:- 1. Silk Moth 2. Lac Insect. Beneficial Insect # 1. Silk Moth: The silk moths are related to butterflies and belong to the order Lepidoptera. From the very ancient times, these insects are well-known for the ability to produce silk. The rearing of silkworm for silk originally started in China, [...]
In this article we will discuss about the dissection of earthworm. Also learn about:- 1. The Alimentary System 2. Dissection of Nervous System 3. Dissection of Reproductive System. Earthworms are delicate animals (Fig.2.1) and need careful handling to avoid damage to internal organs. Killing: Wash the live specimens with water to get rid of mucus. Drop them in a petri [...]