What is not true about energy transformation in living things?

a. energy from respiration is recycled by plants to carry out photosynthesis

b. light energy is converted to chemical energy by plants during photosynthesis

c. chemical energy is transformed to heat energy as organisms carry out respiration

d. energy is stored by plants in bonds of organic compounds used as food

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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1. is geographic distribution

2 is increasing complexity

3 is transitional forms

the growth of the plants is affected by the heat of the light. what is the student doing?