Guide To Learn
Introduction Mosquito-borne disease is an illness of humans caused by the bite of a female mosquito during its blood meal. Mosquitoes get infested with pathogens like viruses and parasites while feeding on the blood of infected birds or mammals and act as vectors for disease transmission. Disease symptoms are usually asymptomatic at the initial stage, […]
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 […]
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 […]
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 […]
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 […]
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 […]
Introduction Social insects are more advantageous with respect to solitary insects over solitary insects. Many individuals in the colony increase systematic functioning, organised and efficient working, sharing information through specialised communication about the food resources. It helps in the foraging of the colony, in many cases retaining the memory of previous reward source and select […]
Introduction Bioluminescence is an example of chemiluminescence or light emission by chemical reaction in a living organism. ‘Bioluminescence’ is derived from Greek- ‘bio’ means living and ‘lumen’ means ‘light’. It is an enzyme-catalysed reaction, a process of conversion of light energy into chemical energy. The Greeks and Romans were the first to discover glowing organisms and sea […]
Introduction Beetles are found everywhere around us. They are very common insects. Beetles belong to the insect order Coleoptera. They can be easily identified by their hard armour-the elytra, giving the appearance of a big nut. Characteristics of Beetles Some of the key features of Beetles are as described below. Explore our latest online courses and learn […]
Introduction For optimum health, the body must maintain a balance of acidity. Too much acidity or alkalinity in the body can have detrimental effects on health. Acidosis may result from specific health problems, prescription medicines, and dietary choices. While some types of acidosis are treatable, severe acidosis can be lethal if left untreated. What is […]