Answer:
can you make this q more clear it doesnt rlly make sense
Explanation:
People who have darker skin have more melanin which is a black or dark brown pigment in the skin. When we are out in the sun our skin produces more melanin, which helps our skin be more resistant in the sun. This is why we tan.
Scientific law is observations and theory is explanation.
Answer:
3. A 2. B. 1. B
Explanation:
Im not to sure about 1. but other than that your good sorry if this didn't help
Answer:
How is the endocrine system related to the nervous system in terms of its regulatory activity?
For one, the endocrine system uses chemical signaling (hormones, produced by glands) while the nervous system uses electrical signaling (neural impulses). The signal transmission of the nervous system is fast because neurons are interconnected, but the functions are more short-lived.
Explanation:
