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Guide To Learn

The Fundamental Unit of Life

Introduction Unicellular Organisms Explore our latest online courses and learn new skills at your own pace. Enroll and become a certified expert to boost your career. Multicellular Organisms Significant Characteristics of Cells Structural Organization of Cell Plasma Membrane/Cell Membrane Nucleus Cytoplasm Cell Organelles Endoplasmic Reticulum Ribosome Golgi Apparatus Lysosomes Mitochondria Plastids Vacuoles

Mosquitoes and Their Life Cycle

Introduction Mosquitoes are, ironically, the most popular insect vectors of animal diseases across the world. Female mosquitoes are hematophagous, feeding on vertebrate blood for egg production and maturation. Different species of mosquitoes prefer different hosts. During feeding, a female mosquito injects her proboscis and discharges saliva inside the host’s skin, causing an itchy reaction. If […]

Mimicry and Coloration in Insects

Introduction Mimicry can be described as the phenomenon of resemblance in physical characteristics or behavioural traits of an animal with a different animal species, usually of different taxa to gain a selective advantage in its environment. Camouflage, on the other hand, refers to the animal species resembling a non-living or inanimate object. Insects constitute a […]

Insects as Pollinators

Introduction Our demand for food is increasing with the increasing human population. To cope with this situation, our agriculture system needs more food production through a sustainable management system. Pollinators play the most vital role in food production. Ways of Pollination Out of 115 leading global crops of human consumption, 87 depend on animal pollination to some […]

Insect Vectors of Plant Pathogens

Introduction Thousands of plant pathogens are known to affect plants. Generally, these plant pathogens are viruses, but they can also be bacteria, fungi, or parasitic nematodes. Most of the vectors of plant pathogens are sucking insects feeding on plant juices of the suborder Homoptera under order Hemiptera. The small stylets of these insect vectors help […]

Growth and Metamorphosis In Insects

Introduction Metamorphosis can be defined as “a process of profound postembryonic reorganization of tissues which usually prepares an animal for the rest of its life in a different habitat.” Metamorphosis is regulated by juvenile hormone secreted from the insect’s brain. Juvenile hormone secretion causes moulting of the insect and results in the emergence of the […]

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