What is the entire object shown in the image? A. prokaryote
B. eukaryote
C. chloroplast
D. mitochondrion

Chloroplast

Explanation:

The organelle is chloroplast because chloroplast is an organelle that contain chlorophyll which is a green pigment or photosynthetic pigment that the plant uses for photosynthesis. It captures light energy from sunlight and it has nucleus, stroma, thykaloids, RIBOSOMES, starch granules, granum, outer membrane e.t.c. it trap light energy from sun and engage in photosynthesis along with water and carbondioxide to produce starch.

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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answer by yourhope:

answer is

human impact on the environment can be seen in the deterioration of the !

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