Luster is the correct answer.
Answer:
Respiration
Explanation:
The act of breathing, simple as that!
Hope this helped!!
Doppler effect is the compression or extension of a sound wave, which causes a change in its wavelength / frequency (and so its sound).
Explanation: It is defined as the effect produced by a moving source of waves in which there is an upward shift in frequency for observers, the source is moving towards and downward shift of frequency from which the source is moving away. used to tell if an object in space is moving toward or away from us.
Answer:
the answer is not d because you can pee without moving. so its a because without the food nutrient no part of our body can work
