What is a key difference between negative and positive feedback mechanisms? Nega

Question

What is a key difference between negative and positive feedback mechanisms? Negative feedback mechanisms are more uncommon in biological systems than positive feedback mechanisms which normally control more frequent events. Diseases many times only result from disturbances in positive feedback mechanism whereas a disturbance in negative feedback mechanisms do not cause disease. Negative feedback mechanisms are more common in biological systems than positive feedback mechanisms which normally only control infrequent events. Negative feedback mechanisms produce a response by the control center that enhances the original stimulus whereas positive feedback mechanisms produce a response that

Explanation / Answer

1 The key difference between postive and negative feedback mechanisms is :- Negative feedback mechanisms produce a response by the control center that enhances the orginal stimulus whwere as postive feedback mechanisms produce a response that.

2 Carbonic acid bicarbonate system able to maintain blood homeostasis by :- Either by acting as a base accepting H+ or by acting as acid donating H+ buffering changes into blood pH.

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