Parents give half of their genes to their offspring that is why their offspring has some features from their dad and some from their mom
Answer: crossing over, process in genetics by which the two chromosomes of a homologous pair exchange equal segments with each other. Crossing over occurs in the first division of meiosis . At that stage each chromosome has replicated into two strands called sister chromatids.
They do not use fossil fuels.
Answer
CORRECT ANSWER ► B
B- A periodic warming sea surface temperatures
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