Answer:
How our body responds to light and how our body responds to danger.
Explanation:
External stimuli are changes that happen outside the body that our body's scenes can detect.
Body composition:<span>is the percentage of person's total body weight that is made up of adipose (fat) tissue as opposed to lean body tissue is known as their body composition. Disease risk is closely related to body composition.
</span>
Answer:
because our body needs six main nutrients to function normally