What constitute the most common way that images of space are captured?
a. fly-by missions
b. astronauts visiting the international space center
c. drones landing on planets
d. gps satellites in earth's orbit

answer is: a. fly-by missions

A. Fly-by missions

Explanation:

Fly-by missions is the most common way that images of space are captured.

A. Fly-by missions

Explanation:

A Fly-By mission involves the use of a space probe that flies over a star, takes photographs and analyzes it with its instruments. This is a very effective method and is the most common way to capture images from space.

It was fly-by missions that took the two Voyager ships to the border of the solar system in the 1970s and 1980s, and they are also missions that take spacecraft to distant planets and moons these days.

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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