The right option is; They allow the body to react to stimuli.
Nerve cells, (also called neurons) are specialized cells that are found in their millions in the nervous system. Nerve cells are created to stimulate other cells in the body. They transmit messages in the form of electrical signals within the body, and they allow the body to respond to stimuli. Neurons are grouped into three types which are; sensory neurons, motor neurons and association neurons.
B or C since the bottom of the pyramiad is going early to old
True because the neritic zone is the relatively shallow part of the ocean above the drop off of the continental shelf. The neritic zone is also known as the coastal water, coastal ocean or the sublittoral zone.
Your answer should be “D”.
i hope i could help!