- speed up chemical reactions in the body / hormones
- transport materials across the body
- regulate body tissues and organs
Ex: insulin
Ex: hemoglobin in the blood transport oxygen around the body..yea XD
Melanin- a large group of related molecules responsible for many functions so like pigment of the skin, hair and eyes
Carotene - pigments that are oxygen-free. Most are hydrocarbons (hydrogen and carbon ONLY) their colour varies from yellow to orange to red
Answer:
ok and water does that tooooooo
Explanation:
A factor that could influence the wolf population is disease
