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Mayank1444
@mayank1444
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Joined: Oct 11, 2021
Last seen: Nov 14, 2021
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4 years ago
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Answer to: Theory of Natural selection dwells on 1993

Correct answer: (1) changes in gene complex resulting inheritable variations

4 years ago
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4 years ago
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Answer to: Evolution is (1) history of a race (2) progressive development of a race

Correct answer: (4) history and development of a race along with variations

4 years ago
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Answer to: A snail covers a distance of 100 metres in 50 hours. Calculate the average speed of snail in km/h.

Average speed = Total distance travelled = 100m = 0.1 km; Total time taken = 50 hr Average speed = = 0.002km/h

4 years ago
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Answer to: What term is used to denote the change of velocity with time? (b) Give one word which means the same as ‘moving with a negative acceleration’.

(a) Acceleration (b) Retardation (c) No, because if a body takes a round trip such that its final position is same as the starting position, the...

4 years ago
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