They generate a fattu subtance known as myelin.
IT is a change of frequency in a genes variant which is called genetic drift. this kind of scenario will result to smaller large population and larger small population :)
I believe the answer is B thank you troy and abed
Explanation:
Water can act as an acid and a base. As an acid, water donates H+, the hydrogen ion. As a base, water donates OH-, the hydroxide ion
hope this helps you
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Balanced force exists when all forces cancel each other out. Un-balanced force would be a man shoving another man. Non contact force is a force that doesn't touch you, like weight. Contact force would be like a elephant standing on-top of a ball. Therefore C. is the answer.