Radioactive elements are useful for the study of the biological system because of the unique properties which they possess. For instance isotopes of radioactive elements can be used to label a specific molecule in order to be able to follow the movement of this molecule as it navigates through the human system.
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Answer: c. another action potential can be generated provided the stimulus is large enough.</h2>
Explanation:
Refractory period - (1) absolute refractory period and (2) Relative refractory period
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Relative refractory period -It is the interval immediately following the Absolute Refractory period during this period, initiation of a second action potential is inhibited but not impossible. It is the period shortly after the firing of a nerve fiber when partial repolarization has occurred and only a greater than normal stimulus can stimulate a new response.
Storage proteins<span> serve as biological reserves of metal ions and amino acids, used by organisms. They are found in plant seeds, egg whites, and milk. </span>
