Answer:
Crossing-over is the exchange of genetic material between homologous chromosomes. It results in new combinations of genes on each chromosome. When cells divide during meiosis, homologous chromosomes are randomly distributed to daughter cells, and different chromosomes segregate independently of each other.
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Answer:
I think it decreases the activation energy needed for the reaction to start.
Explanation:
I think that's right but it's not an answer choice.
Answer:
The four main ways are freeze-thaw, onion skin (exfoliation), chemical and biological weathering.
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