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Explain Bioluminescence - Ethological Approach in Taxonomy
In those animals which exhibit bioluminescence. The pattern produced by the bioluminescence is used in taxonomy. It has been used, for example, in the identification of sibling species of the fire fly (Photuris).
The study of the frequency, intensity, colour and shape of individual flashes, flash sequences which may be of short or long duration, of constant intensity or may increase or decrease in intensity has made it possible to identify 18 sibling species of Phoiuris instead of just the 3 known before. Since the separation of the species on basis of bioluminescence, other differences have also come to light, in terms or differences in preferred habitat, in the breeding seasons and in body colour.
Define Phenolic Acids and Derivatives? Two families of phenolic acids are widely distributed in plants: a range of benzoic acid derivatives and those derived from cinnamic acid
LARYN X - Study of larynx is known as Laryngeology. In man it is more prominent than woman known as Adam's apple. It is sound producing organ. At its base trachea presen
The best way to maintain quality of air and pollutant's emissions is by using less polluting fuels and processes. Following can be taken to control air pollution. Source correc
Explain the types of double beam systems? Following are types of double beam systems: a) Dual beam in space type b) Dual beam in time type In type (a) separate detecto
locomotary organ in mollusca
Although there is much talk in the news about stem cell research, the public and policymakers need to understand how basic body cells work to transmit information and replicate to
Q. Can Obesity causes the cardiovascular disease? As you know obesity or excessive weight is the primary cause of cardiovascular disease. It is an independent risk factor for h
A useful way to grow seeds Tie a piece of cloth over the mouth of an old potted meat jar. Permit extra cloth to hang down the sides and dip in about 2 cm of water contained in
Hormones are composed from several classes of molecules. As far as our present knowledge extends, hormones are not found in which of the subsequent categories of substances: a)
Q. Determine the quality of various food grains? After undertaking this activity, you will be able to: • determine the various fractions involved with the physical examinati
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