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Tresset [83]
3 years ago
12

In which plants' life cycle does double fertilization occur?

Biology
2 answers:
Otrada [13]3 years ago
5 0
Double fertilization occurs in Angiosperms
kati45 [8]3 years ago
5 0

Answer:

Explanation:

The process of double fertilization occurs in the life cycle of angiosperms. Angiosperms are the flowering plants which exhibit stems, roots and leaves. The seeds of the angiosperms remain enclosed in the flower. The double fertilization takes place when one pollen nuclei  fuses with the egg to form a zygote and the other fuses with the  polar nuclei (two) so as to form endosperm.  

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Answer:

In the cardinals, if the females start using a different criterion than the color of the feather when they choose couple, most likely to happen is that decreased variation in the shades of red because no form of the trait is advantageous.

Explanation:

Options for this question are:

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  • <em>Decreased variation in the shades of red because the only reason for variation was selection pressure.</em>

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But, if the selection criterion was not the color of the feathers, this trait would no longer represent an advantage in the competition between the males to be chosen as a mate. Instead, the trait that would determine sexual selection would be the one that experiences an increase in its variation<em>.</em>

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Explanation:

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