How does meiosis introduce genetic variation into offspring?

Meiosis leads to increased genetic variation by reshuffling genes and creating random genes. The variation produced by meiosis accounts for differences in closely related individuals, such as members of the same family, as well as genetic differences in people within larger populations

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burning of wood and coal

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the panel also concluded there's a better than 95 percent probability that human-produced greenhouse gases such as carbon dioxide, methane and nitrous oxide have caused much of the observed increase in earth's temperatures over the past 50 years.

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.