Please help. Will mark brainliest! Which statement is true about what is happening on the image above?
A. Nerve signals from the brain are controlling the arm.
B. nerve signals from the spinal cord are controlling the arm.
C. Receptors in the arm are controlling the spinal cord
D. Receptors in the hand are controlling the hand.

A. Nerve signals from the brain are controlling the arm.

Explanation:

Bec ause it starts at the brain and to the arm/hand!.

clumped distribution, because you'de have all of the population gathered in a relatively small are.

it's the most common because it provides protection and a mate for reproduction

example: humans, seeweed, cattles, etc.