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.
Answer:
B
eukaryotes are organisms that are unicellular and have no nucleus
Explanation:
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Answer:
Newly exposed or newly formed rock is colonized by living things for the first time.
Explanation:
In other world rock is being inhabited. A community is beginning to form.
Continental polar air mass this is the type of mass that come from northern Canada
