In this article we will discuss about Arthropods:- 1. Integumentary System of Arthropods 2. Muscular System of Arthropods 3. Body Cavity 4. Digestive System 5. Circulatory System 6. Nervous System 7. Reproductive System 8. Life Cycle. Integumentary System of Arthropods: In all arthropods, the integument consists of: (i) An innermost extremely thin stellate cell layer, called basement membrane, (ii) A [...]
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 [...]
The following points highlight the four main stages involved in the life cycle of silkworm moth. The stages are: 1. Adult Moth 2. Eggs 3. Larva 4. Pupa and Imago. Stage # 1. Adult Moth: The adult moths are 25 mm in length and the span of wings is 40-50 mm. The female silkworm moths are larger than the males. [...]