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erik [133]
4 years ago
10

What is the role of pollen grains in fertilization process?

Biology
1 answer:
leva [86]4 years ago
6 0
As the pollen tube penetrates the ovule, it releases two sperm cells. ... As in gymnosperms, the ovule becomes a seed, encasing the embryo and endosperm in a seed coat. But unlike gymnosperms, in angiosperms the ovary containing the ovules develops into a fruit after fertilization
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Answer:

This scenario has been discovered and studied in slime molds.

Explanation:

The green beard effect is one of the three fundamental mechanisms of kin selection. In the 1960s, W.D. Hamilton in his work on the evolution of altruism brought it into the highlight. The other two mechanisms are kin discrimination and population viscosity. Green-beard effect functions even when the altruist and her recipients are not genealogical kin.

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After eating a salty fish dinner you are very thirsty for plain water, a condition described as: A. intracellular thirst B. extr
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Answer:

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Explanation:

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