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The set of annelid characters that are share by leeches is – (i) setae for locomotion (ii) metameric segmentation (iii) indeterminate number of segments (iv) presence of clitellum (v) hermaphroditism (a) i, ii and iii (b) ii, iii and iv (c) only and iv (d) ...

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Advantage of animal aggregation consisting of several overlapping generations is that – (a) gene frequencies do not fluctuate (b) genes for altruism is found in all (c) fecundity and fertility is high (d) competition is at its minimum ...

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Plants with inferior ovary always bear : (a) pseudocarps (b) berries (c) aggregate fruits (d) seedless fruits ...

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Platyhelminths have highly branched intestine due to the lack of which of the following structures? i. anus ii. circulatory system iii. coelom iv. accessory digestive glands (a) i, ii & iii (b) ii, iii & iv (c) i, ii & ...

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Addition of chemical fertilizer claims increased irrigation to avoid development of – (a) excessive solute potential in soil (b) air spaces that may cause oxidation of fertilizes (c) bacteria that may decompose useful salts (d) larger root caps on the tender tips branches ...

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Cattle ranches are known to cause acute green house effect. This is due to – (a) mechanized milking practices (b) methanogenic bacteria in the rumen (c) decomposition of leftover fodder (d) decomposition of organic remains in feces ...

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The biochemical analysis to confirm CAM in a green plant is (a) Titratable Acid Number (b) Iodine number (c) Activity of transaminases (d) Total reducing power ...

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