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8090 [49]
3 years ago
11

Every change that occurs in an ecosystem is harmful true or false

Biology
2 answers:
yuradex [85]3 years ago
7 0

Answer:

That's false, not all changes in the ecosystem are harmful,but many are

kotegsom [21]3 years ago
5 0
I think that it would be true
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Answer:

A pollen tube grows from the pollen grain into the ovary

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Water is needed for fertilization in several plant groups because the sperm needs to swim to meet the non-motile eggs of the female organs.

<em>However in angiosperms, the pollen germinates and a structure known as pollen tube which contains the male gametophyte (sperm) grows into the ovary where the ovule is located and the male gametophyte is deposited in the ovule to initiate the fertilization process.</em>

<em>Hence, water is really not necessary for fertilization in the angiosperms.</em>

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<em>Answer:</em>

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