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maksim [4K]
3 years ago
8

1. What factors are in an ecosystem?

Biology
1 answer:
IRISSAK [1]3 years ago
8 0

Answer:

There are biotic factors which are living things or things that used to be living(fish, birds, etc), and abiotic factors which are things that are not alive and have never been alive(rocks, water, etc).

Explanation:

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Answer:

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Explanation:

Meiosis is essential for sexual reproduction.In humans diploid gamete-mother cells or germ line undergo meiosis to produce haploid gametes.

The chromosomes pairs of each parent undergo crossing over during meiosis.so daughter cells i.e gametes have genetic variations.When gametes  fuse and form zygote ,its genetic make up is different from both parents.thus meiosis allows a species to bring variations in next generations.Benenficial variations help organisms to adapt to the changes in environment.

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