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Answer:
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Explanation:
G1 phase. G1 is an intermediate phase occupying the time between the end of cell division in mitosis and the beginning of DNA replication during S phase. During this time, the cell grows in preparation for DNA replication, and certain intracellular components, such as the centrosomes undergo replication.
A controlled variable is not changed throughout an experiment. It is there so that the other variables being tested on can be better understood.
Species relationships. People find similarities between fossils and modern organisms to connect to evolution and other factors.
