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BaLLatris [955]
3 years ago
12

Which best describes adaptive radiation?

Biology
1 answer:
murzikaleks [220]3 years ago
5 0

The correct answer is - D. Biodiversity resulting from few ancestors.

The adaptive radiation is an evolutionary process in which diversification is appearing among a species, and it starts to fill in different ecological niches.

The adaptive radiation occurs when a species starts to evolve into multiple different species. The reason for the diversification is available space in the ecologic niches. The members of the initial species, start to exhibit new behaviors, new ways of feeding, change in coloration, all in order to be better suited for a specific ecological niche.

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3 years ago
Because the human embryo is able to split during early cleavage or blastocyst formation to produce two viable progeny, it is sai
juin [17]

Answer:

This question lacks options, options are:

a) indirect

b) mosaic

c) determinative

d) regulative

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The correct answer is d.

Explanation:

The egg (ovum) like the embryo during the first embryonic divisions, do not possess any sign of polarity. This development mechanism can be called regulative development(in contrast to the mosaic model) since the fate of the cells that originate is not fixed and can be modified during development. In regulative embryos, part of the embryo can be removed and the remaining cells can compensate for the loss and give a complete individual as the final product.The strongest evidence that continues to support this regulatory model is based on the plasticity or potential that mammalian cells possess before implantation. It is known that the blastomeres produced by the first divisions can be replaced with each other or even can be eliminated without apparently altering the embryonic development and therefore they are equivalent (without polarity).

3 0
3 years ago
How does the cell theory describe the levels of organization of living organisms ???
Burka [1]
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</span>
5 0
3 years ago
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Allushta [10]

Answer:

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Explanation:

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4 0
3 years ago
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