Question

a diagram of the human central nervous system is shown below

1. which of the following best describes the function of the human nervous system?

a) the nervous system removes waste products from the human body through the excretion of sweat and urine.
b) the nervous system breaks down large food molecules into smaller nutrients so that they can be transported around the body.
c) the nervous system gathers, interprets, and responds to information about the bodys internal and external environment.
d) the nervous system transports oxygen and nutrients to the cells of the human body through a system of nerve cells.

Explanation:

• Option A: Removing waste products (excretion) is mainly the function of the excretory system (e.g., kidneys, large intestine for feces).
• Option B: Breaking down food molecules is the role of the digestive system (e.g., stomach, intestines with enzymes).
• Option C: The nervous system (with neurons, brain, spinal cord) gathers sensory information (e.g., touch, sight), interprets it (in the brain), and responds (e.g., moving a hand away from a hot object).
• Option D: Transporting oxygen and nutrients is the job of the circulatory system (blood, heart, blood vessels).

Answer:

C. The nervous system gathers, interprets, and responds to information about the body's internal and external environment.