Why are negative feedback loops more effective at maintaining homeostasis than positive feedback loops?
What will be an ideal response?
Negative loops counteract a stimulus to return the body to homeostatic levels. For example, when an animal's body temperature increases, blood vessels dilate and sweat is produced to help lower the temperature back to normal. Positive loops respond to a stimulus by moving the body further from the homeostatic normal.
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The carbohydrate(s) found in nucleic acids is/are
A. ribose. B. glucose. C. galactose. D. deoxyribose. E. ribose AND deoxyribose.
So far, the only disease that has been globally eradicated is
A. polio. B. smallpox. C. measles. D. diphtheria.
Besides Darwin, the theory of evolution by means of natural selection was also independently proposed by:
A. Charles Lyell. B. Karl Popper. C. Thomas Malthus. D. Peter Raven. E. Alfred Wallace.
Miller's apparatus synthesized
A. ammonia. B. amino acids. C. carbon dioxide. D. DNA.