Answer:
Evolution of pollen made seed plants to reproduce independent of water.
Explanation:
Pollens are produced inside the microsporangia in seed plants and serve to carry the male gametes. Pollens are dispersed over long distances along with with air current, or ant biological pollinating agents such as insects.
Since pollen does not require the water to reach the female gametes, the evolution of pollen allowed the seed plants to reproduce independently of water. This was an adaptation towards life in dry habitats.
The advantage that pollen provides to seed plants in terms of their reproductive biology is the fact that sperm is no longer dependent on water to reach the egg.
Pollen represents the male gametophyte of the seed plants, which is composed of one or more vegetative cells and one reproductive male cell (i.e., the sperm cell).
Both gymnosperm plants and angiosperm plants generate pollen grains during sexual reproduction.
A pollen grain can travel through the air instead of water, carrying the sperm cell to the female ovule (i.e, the egg cell) and simultaneously preventing it from drying out.
In conclusion, the advantage that pollen provides to seed plants in terms of their reproductive biology is the fact that sperm is no longer dependent on water to reach the egg.
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