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Snowcat [4.5K]
3 years ago
7

Which factor has a positive effect on the quality of sleep?A. Sleeping in a quiet environment.B. Sleeping hours that synchronize

with the circadian rhythm.C. Spending additional time in stage II of the sleep cycle.D. Sleeping in a dark environment
Biology
1 answer:
drek231 [11]3 years ago
5 0

Answer:

A. Sleeping in a quiet environment

Explanation:

As it's free from stress

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Now, a dihybrid cross between two homozygous blue-eyed, whistling dragons will yield 16 offspring all with the same possible genotype .i.e. homozygous blue-eyed, whistling type.

Morgan through experiments on fruit flies observed that when the two genes in a dihybrid cross were situated on the same chromosome, the proportion of parental gene combination were much higher than the non-parental type.

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