Biology, 17.01.2021 04:30, tommyaberman
When a human's blood pressure increases, signals are sent from the blood vessels to the brain. Then, the brain sends a message to the heart, telling the heart rate to slow down. Is this an example of positive or negative feedback? How do you know? Explain how the situation could be the opposite (for instance, if you said that the example above is positive feedback, then explain a scenario where it could be negative feedback).
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Which fossil organism in whale evolution do you think was the first to live mostly in water? explain your claim with evidence and reasoning?
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