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Insect in Biological Definition

Endosymbiont

... corals contain single-celled algae, and several insect species contain bacterial endosymbionts. Many ... is obligate in that neither the bacteria nor the insect is viable without the other. Scientists have ... The endosymbionts live in specialized insect cells called bacteriocytes (also called ...

Endosymbiont

... corals contain single-celled algae, and several insect species contain bacterial endosymbionts. Many ... is obligate in that neither the bacteria nor the insect is viable without the other. Scientists have ... The endosymbionts live in specialized insect cells called bacteriocytes (also called ...

Malaria

... chance of malaria, as well as the discomfort of insect bites. Extracts from the plant Artemisia ... eliminated it from affluent regions. Sterile insect technique is emerging as a potential method to ... to children of mosquito nets impregnated with insect repellants has been suggested as the most ...

Charles Darwin

... up by an illness which may have been Chagas' disease contracted from insect bites. For the rest of his life he suffered recurring episodes of illness ... into an innovative study of how their beautiful flowers served to control insect pollination and ensure cross fertilisation. As with the barnacles, ...

Cladistics

... This cladogram shows the relationship among various insect groups. In some cladograms, the length of the horizontal lines indicates ... function, each evolved independently from the other). If a bird and an insect were both accidentally scored "POSITIVE" for the character "presence of ...

Ecdysone

... Ecdysone is a prohormone of the major insect moulting hormone 20-hydroxyecdysone . insect moulting hormones (ecdysone and its homologues) are generally called ...

Entomology

... insects is focussed on their physiology, with the goal of developing insect controls that are effective while minimizing undesirable side effects. For ... type of insecticides have been developed that target unique aspects of insect internals and are thus harmless to other kinds of animals, but these can ...

Apoptosis

... Williams published their contribution on "Endocrine potentiation of the breakdown of the intersegmental muscles of silkmoths" in the Journal of insect physiology (10 p. 643), where they used the concept of "programmed cell death". Unfortulately, though, not much research was being carried out on ...

Biomechanics

... . Some simple examples of biomechanics research include the investigation of the forces that act on limbs, the aerodynamics of bird and insect flight , the hydrodynamics of swimming in fish and locomotion in general across all forms of life, from individual cells to whole ...

Blood

... hemolymph ) is not involved in the transport of oxygen. (Openings called tracheae allow oxygen from the air to diffuse directly to the tissues). insect blood moves nutrients to the tissues and removes waste products. Anatomy of blood Blood is composed of several kinds of corpuscles; these ...

Drosophila

... of chitin . They have an open circulatory system with a dorsal heart, hemocoel occupies most of the body cavity, and coelom is reduced. The insect respires by means of air-filled internal tubes, the tracheae . This ectoderm -derived organ forms a highly branched tubular network which provides ...

Metapopulation

... species which interact at some level. The term metapopulation was coined by Richard Levins in 1969 to describe a model of population dynamics of insect pests in agricultural fields, but the idea has been most broadly applied to species in naturally or artificially fragmented habitats . A ...

Mycology

... studied by Abraham Joffe . Also, fungi are fundamental for life on earth in their roles as symbionts , e.g. in the form of mycorrhizae , insect symbionts and lichens as well as their potency in breaking down complex organic biomolecules such as wood as well as xenobiotics are a ...
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