The deep sea vent organisms or benthic organisms normally live in dark conditions because of no penetration of sunlight. These organisms in order to colonize ocean surface must develop photo sensory receptors and should adapt to the light conditions along with variation in temperatures and pressure in ocean currents.
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I think it's up to 100 times
Answer:
How does crossing over affect the alleles of a chromosome?
Since the chromosomes are homologous, breaks at corresponding points mean that the segments that are broken off contain corresponding genes, i.e., alleles. ... Crossing over results in recombination of genes found on the same chromosome, called linked genes, that would otherwise always be transmitted together.
Guess it would be B. Is my answer
Answer:
Density-independent factors, such as weather and climate, exert their influences on population size regardless of the population's density. In contrast, the effects of density-dependent factors intensify as the population increases in size.
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