In this article we will discuss about the external structures of Crustaceans, Myriapods, Insects and Chelicerates. 1. Head: In Crustacea, the head is formed by the fusion of six segments. The organisation of head varies in different Crustaceans. In Cephalocarida and Branchiopoda, the head is free from thorax. In free-living Copepods, only the first thoracic segment unites with the head [...]
In this essay we will discuss about House-Fly. After reading this essay you will learn about:- 1. Habit and Habitat of House-Fly 2. External Structures of House-Fly 3. Inner Structures 4. Life History 5. Control. Essay Contents: Essay on the Habit and Habitat of House-Fly Essay on the External Structures of House-Fly Essay on the Inner Structures of House-Fly Essay [...]
In this essay we will essay about Cockroach. After reading this essay you will learn about:- 1. Habit and Habitat of Cockroach 2. Geographical Distribution of Cockroach 3. External Structures 4. Integumentary System 5. Body Cavity 6. Alimentary System 7. Respiratory System 8. Circulatory System 9. Excretory System 10. Nervous System 11. Endocrine System 12. Reproductive System 13. Development. Essay [...]