The cerebellum controls balance
The most important reason they are considered non living is because they cannot live and reproduce without the help of a host cell.
The answer to this one is true
Communicate , experiment , hypothesis, collect data
Your eyes don’t change color, they only reflect the colours around them in particular if they are light coloured eyes. My eyes are blue-grey with a green heterachromia. They are very sensitive to light and dust so they get red easily which makes the eye color appear a brighter blue. If I wear green, the appear more green in color, when I am sunburned they appear more turquoise, etc. But when I wear white or don’t have a shirt on, they look their true blue-grey.