Hello!! I think your best answer would be D - Tetrad because consists of four chromatids. It is made up of two (pair) of homologous chromosomes that have already replicated into a pair of sister chromatids. I hope this answers your question. Have a great day!! :)
The answer is c. they live in conditions similar to those likely to be found on other planets.
<span>"they form a cyst: a hard covering is formed around the protozoan and metabolic rate is slowed"</span>
The third one is ze answer
Answer:
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Explanation:
Causes of Variation:
Causes of differences between individuals include independent assortment, the exchange of genes (crossing over and recombination) during reproduction (through meiosis) and various mutational events. There are at least three reasons why genetic variation exists between populations.
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