Aids is one of the disease that damage little by little the immune system until the human body die.
Four conditions are needed for natural selection to occur: reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population. If they are met, natural selection automatically results.
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<span>Answer:
Bacterial DNA is directly exposed to the cytoplasm, which has the ribosomes on which protein synthesis takes place. As the mRNA molecule proceeds for synthesis, ribosomes immediately attach to the free 6' end of the RNA transcript and begin translating it into protein.</span>
