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The amino acids code for the protein. If one amino acid is changed then the whole protein is changed.
Interstitial cells surrounding seminiferous tubules produce testosterone in response
lh
Inhale and exhale because you inhale the oxygen and exhale the carbon dioxide
3A- Negative feedback occurs when some function of the output of a system, process, or mechanism is fed back in a manner that tends to reduce the fluctuations in the output, whether caused by changes in the input or by other disturbances.
3B- Negative feedback loops are used to maintain homeostasis and achieve the set point within a system. Negative feedback loops are characterized by their ability to either increase or decrease a stimulus, inhibiting the ability of the stimulus to continue as it did prior to sensing of the receptor.
Hope I’ve helped ;)
