Answer: mitosis
Explanation: meiosis is the mechanism for recombination of genetic material during the formation of gametes. The zygote is the first embryonic cell and the embryo increases by mitosis.
They actually are not, due to shape.
I think option D would be evidence of global warming.
Two major mechanisms are causing sea level<span> to </span>rise<span>. First, shrinking land ice, such as mountain glaciers and polar ice sheets, is releasing water into the oceans. Second, as ocean temperatures </span>rise<span>, the </span>warmer<span> water expands. Trapped within a basin bounded by the continents, the water has nowhere to go but up.
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Which ends up being Global warming.
Hope this helps :)
Answer:
It ensures that sexually reproduced offspring have the correct amount of chromosomes when born, this ensures that disorders such as down syndrome don't occur. It also makes genetic variation possible, by way of genetic recombination, this is so that siblings don't look exactly the same, disregarding twins.
Explanation:
Answer:
The warming of Earth, accompanied by the seas covering the land, created the proper conditions for multicellular organisms to form.
Explanation: