The social organization of the honey-bees is established by the living of all individuals within the colony and they show the mutual cooperation among the members of the colony, and exhibit the overlapping generations. At least there is a division of labour among the different types of honey-bees in the colony or hive. The different forms or types of insects [...]
The following points highlight the three main factors influencing the life cycle of silkworm. The factors are: 1. Extraction of Silk 2. Composition of Silk 3. Modern Sericulture. Factor # 1. Extraction of Silk: The continuous silken thread which builds the cocoon serves as the source of the silk of our requirement. As the adult emerges from the pupa, the [...]
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 [...]