16. Which of the following levels of organization lists the levels in order from the smallest level to the largest level? A cell → tissue → organism → organ C cell → organism → tissue → organ system
B cell → tissue → organ → organ system D cell → organ → organism → tissue

B cell → tissue → organ → organ system

Explanation:

This is the correct answer. "Cell is the smallest unit of life"

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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children tend to take more after their grandparents more than their parents. it’s the dna you received that was passed down to you somewhere in your family. maybe one of your grandparents had/has straight hair and you might have gotten it from them.