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If no pregnancy occurs, the corpus luteum is reabsorbed into the ovary after two weeks and the hormone levels drop; this causes menstruation.
Answer:
Snowshoe hares have an interesting adaptation that helps protect them against predators. Depending on the season, their fur can be a different color. During the winter, snowshoe hares are white, which helps them blend in with the snow.
Explanation:
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Answer:
The following statement that isn't in the cell theory is c.
Explanation: