Explain how it is possible for the north pole to receive insolation for 24 hours for 6 months, yet it still remains cold.
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What happens when the cell copies its chromosomes

During the winter, this species of fox has white fur, but in the summer, it has brown fur. what environmental change may have lead to this fox's fur color? snow cover increase in sun's brightness volcanic eruption global warming

Which phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?