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Biology, 22.06.2019 05:50
Acell in the human nervous system whose primary function is to form myelin and the blood-brain barrier, respond to injury, remove debris, and enhance learning and memory is called a(n) cell.
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Biology, 22.06.2019 09:30
What is the difference between a scientific hypotheses and a scientific theory?
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Males of different species of the fruit fly drosophila that live in the same parts of the hawaiian islands have different elaborate courtship rituals. these rituals involve fighting other males and making stylized movements that attract females. what type of reproductive isolation does this represent?
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Biology, 23.06.2019 01:00
Approximately how much solid waste do americans produce annually? a) 250 tons b) 250 thousand tons c) 250 million tons
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The large deposit of sand and soil formed at the end of a river is a...
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