In this article we will discuss about Phylum Chaetognatha:- 1. History of Phylum Chaetognatha 2. Features of Phylum Chaetognatha 3. Affinities. History of Phylum Chaetognatha: 1. Slabber, in the year 1769, was the first worker to record Sagitta and he placed it in the order Intestina under phylum Vermis. 2. Since then extensive works on various aspects of Sagitta have [...]
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 [...]