In this article we will discuss about Metamorphosis in Insects:- 1. Meaning of Metamorphosis 2. Types of Metamorphosis 3. Events 4. Role of Hormones. Meaning of Metamorphosis: Metamorphosis can be defined as "a rapid and complete transforÂmation from an immature larval life to a sexually adult form involving morphology, function and habitat changes". Ecdysis or moulting is the periodic shed- [...]
In this article we will discuss about the economic importance of insects. A. Beneficial Insects: Insects which produce honey, wax, lac, dyes and silk are commercially beneficial. Some insects are very helpful in destroying injurious insects. 1. Commercial Products: Apis, the honeybees produce millions of tons of honey every year, it also gives bees wax from its combs. Benefits of [...]
Mouth Parts in Insects! 1. Biting and Chewing: This type of mouth parts are supposed to be the most primitive type as the other types are believed to be evolved from biting and chewing type of mouth parts. These consist of the labrum forming upper lip, mandibles, first maxillae, second maxillae forming lower lip, hypo pharynx and the epipharynx. The [...]