answer: the blood-brain barrier is a layer of specialized membranes and cell processes designed to keep undesirable substances from passing from the bloodstream into the precious tissues of the brain. while the blood-brain barrier does keep most bad things out of the central nervous system, it is not impermeable.
explanation:
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the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus
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is this for the e2020 class
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B. absorbs violet lightto get absorb sunlight for photosyntesis
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Biology, 21.06.2019 23:00
Based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?
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