Zoology

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

The excretory system of insects is primarily designed to eliminate nitrogenous waste while conserving water, reflecting their adaptation to terrestrial environments. Insects utilize a specialized structure known as Malpighian tubules, which are thin, tubelike organs extending from the gut. These tubules absorb waste products and excess salts from the hemolymph (the insect equivalent of blood) … Read more

Insects exhibit a remarkable diversity in their feeding habits, leading to significant adaptations in their digestive systems. These adaptations can be classified based on their dietary preferences, which include phytophagous (plant-eating), entomophagous (insect-eating), wood-boring, wool-feeding, and saprophytic behaviors. Each of these feeding strategies necessitates specific structural modifications within the digestive system to efficiently process the … Read more

What are insect vector? Vectors play a crucial role in the transmission of pathogens and parasites that cause infectious diseases in both plants and animals. By definition, a vector is an organism that carries a disease-causing agent and facilitates its spread among hosts. Understanding the dynamics of vector transmission is essential for developing effective control … Read more

Social behavior refers to interactions between individuals of the same species, often providing mutual or individual benefits. In the case of insects, social behavior has evolved due to its advantages in survival and reproduction. By working together, individuals in insect societies enhance their ability to defend their colony, forage efficiently, and reproduce more successfully, thus … Read more

What is a Social Insect? Characteristics of Social Insects Social insects, including species such as ants, termites, bees, and wasps, exhibit distinct characteristics that allow them to thrive in highly organized colonies. These characteristics ensure cooperation, survival, and efficiency within the colony. Social insects are not only known for their complex societies but also for … Read more