Which of the following can be expressed as a mathematical formula? a. a hypothesis b. a scientific law c. a scientific theory d. an observation

B. A scientific law  

Explanation:

A scientific law is a statement that explains an idea or phenomenon based on thoroughly experimental observations. Scientific laws are widely accepted to be true based on the fact that they have always been observed to be true. A scientific law can be in the form of words or it can be expressed as a mathematical formula. Examples of scientific laws include; the laws of thermodynamics, Hook’s law of elasticity, law of gravity and Boyle’s law of gases.

rocks and weathering-matching

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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