Biology, 13.04.2020 20:26 zuleiny38

What is the difference between chromosomes, chromatids, homologous chromosomes?

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Biology, 22.06.2019 02:20, jothianddeepi

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?

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Biology, 22.06.2019 07:00, Bengynease2598

An ecologist studied the same species of deer during the summer and the winter. she noticed that during the summer, when there was plenty of food, the deer were energetic and playful. however, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator. which scientific fact is best supported by her observations?

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Biology, 22.06.2019 09:00, keesbre

How does photosynthesis show the conservation of mass and energy?

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Biology, 22.06.2019 10:30, rekeiyip3