They give us the energy we need to move and to speak and to live they do that for all the organisms on earth
Answer:
the skin cells prevent germs from coming in our bodies
Explanation:
The people represented by the ends of the bell-curve are the most rare.
This could mean that if it's an iq curve the people at the ends have either a really high or really low iq etc.
Its either a or d
a because if someone takes a photo of the wings they could see how the wings work
or
d because then the person could see the colors in the pictures