Which element is common in the 5 food groups

the correct answer is

These elements are carbon, hydrogen, nitrogen, phosphorus, and sulfur. There are also 5 elements found as salts (dissolved). They are sodium, magnesium, chlorine, potassium, and calcium.

Explanation:

hope this works out!!

its not five its 6

There are 6 elements found in almost all foods. These elements are carbon, hydrogen, nitrogen, phosphorus, and sulfur. There are also 5 elements found as salts (dissolved). They are sodium, magnesium, chlorine, potassium, and calcium.

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

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