Answer:
melanin affects how one looks (1st question)
cause and effect (2nd question)
Explanation:
for the 2nd question, its cause and effect because uv rays hit our skin and our skin is affected which gives us suntan.
Sorry if I’m wrong but I believe it’s the cardiovascular and lymphatic system
Hope this helps!
Answer:
C.
It is able to regulate the flow of the calcium oxide and water into the food to make it warm.
Explanation:
From the med. terranian basin to the mountains of central asia.