My answer -
Organisms that reproduce sexually do so via the production of sex cells, also called gametes. These cells
are very different for the male and female of a species. In humans,
male sex cells or spermatozoa (sperm cells), are relatively motile.
Female sex cells, called ova or eggs, are non-motile and much larger in
comparison to the male gamete. When these cells fuse in a process called
fertilization, the resulting cell (zygote) contains a mix of inherited genes from the father and mother. Human sex cells are produced in reproductive system organs called gonads. Gonads produce sex hormones needed for the growth and development of primary and secondary reproductive organs and structures.
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The branch of zoology that studies
Answer:
The answer to your query would be Water, or the Second Option.
Explanation:
As you may know, water can erode material, although temperature cannot. Plant roots would not have the power to erode rock more than something smaller than the eye can see. Therefore Water is the only option that would make sense.
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Answer:
Study and believe in yourself,don't give up!