Answer:

Explanation:
Knowing that the formula for average velocity is:

Being said that, we know that the person's displacement is zero because it returns to its starting point

That means 

...a nerve. These send signals from the body to the brain and vice versa.
Answer:
Variation
Explanation:
This explains variation because theres many different species in the question
I won't touch the object because there is a warning sign and that means you stay out if it because it is a danger sign that High Resistance Material that means it is dangerous.