Zoology

The reproductive system in insects is highly specialized and varies significantly across species, reflecting their diverse life histories and ecological roles. In general, both male and female insects possess distinct reproductive organs tailored for the production, fertilization, and development of offspring. The male reproductive system typically consists of paired testes that produce sperm, which is … Read more

Insects possess a diverse array of sensory receptors that enable them to effectively interact with their environments and respond to various stimuli. The primary visual receptors are compound eyes, which consist of numerous individual units called ommatidia, allowing insects to detect light, motion, and color across a broad field of vision. Additionally, dorsal ocelli and … Read more

What is Metamorphosis in Insect? Types of Insect Metamorpho­sis Insects exhibit remarkable diversity in their developmental processes, primarily classified into three distinct types of metamorphosis: ametabola, hemimetabola, and holometabola. Each type demonstrates unique features that influence the life cycle, habitat, and ecological roles of various insect species. What is the endocrine control of moulting in … Read more

The insect endocrine system is a complex network of glands and neurosecretory cells that regulates essential physiological processes, including growth, molting, metamorphosis, and reproduction. It operates primarily through the release of hormones such as ecdysone and juvenile hormone. Ecdysone, produced by the prothoracic glands, controls the molting process, enabling the insect to shed its exoskeleton … Read more

The respiratory system of insects is a sophisticated network designed for efficient gaseous exchange. This system relies on a series of internal tubes known as tracheae, which permeate the insect’s body, extending to all tissues, including muscle fibers. Unlike in vertebrates, where oxygen is transported via blood, the tracheal system allows oxygen to reach its … Read more

The insect circulatory system is an open system characterized by the circulation of hemolymph, a fluid that functions similarly to blood in vertebrates, throughout a body cavity known as the hemocoel. Unlike closed circulatory systems, where blood is confined within vessels, the hemolymph in insects bathes the internal organs directly. The primary component of this … Read more