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Spermatophores
Many non-chordates do not release free sperms during copulation. They have a mechanism to bundle and enclose a number of sperms in a sheath usually made of gelatinous material. Such bodies are called spermatophores. Most insects, the centipedes and certain molluscs produce spermatophores. Male centipede emits spermatophores and places it on a web already made. The female picks up the spermatophores and takes it into her genital opening. In many male cephalopods such as Loligo and Argonauta one of the arms gets specialised for the transfer of spermatophore into the females. Such an arm is called hectocotylized arm. The spermatophore, after having been deposited in the female, finally releases the sperms which move into the female ducts or the spermathaca.
Define reagent required and methodology for Barfoed Test? Reagents - Solutions of glucose, fructose, galactose, lactose, maltose, sucrose and starch - Barfoed's reagent
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Define the Binge Eating Disorder? Binge eating disorder is probably the most common eating disorder. Binge eating you may recall we studied as an element of bulimia nervosa. In
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Q How does the excretory system of nematodes work? The metabolic residuals of nematodes are together by two longitudinal lateral excretory channels that open in one single excr
is paper broken down by microorganisms
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Characteristic of Ecotone A general characteristic of ecotone is that it has sufficiently greater number of species and the diversity of most of the species at times is higher
Which of the following does NOT contain a guanidinium group Select one: a. Urea b. arginine c. creatine d. guanidinium ion
1) The oxidative phase generates NADPH The oxidative branch of the pathway generates NADPH and pentose-5-phosphate, through the following reactions: a) Glucose-6-pho
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