When the knee is hit with a rubber hammer, the leg kicks forward, and then returns to the original position. This is an example of a spinal reflex arc. The sensation of the hammer travels to the _, where it activates motor neurons that cause the leg to move. This reflex is part of the _ nervous system. Answers:
1. spinal cord
2. somatic

I hope this helps.

spinal cord and the somatic (i haven't even learned this but by the word choices you can read it and tell what sounds right in that sentence, but Im right I looked it up to make sure)

Explanation:

from the original order (top to bottom) the new order will go

1 (founder)

4 (hawk)

2 (mutate)

3 (next generation)

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