Answer:
Circulatory System
Explanation:
Capilaries are tubes that transport blood and provide nutrition through diffusion in tissues. Transporting blood is a function of the circulatory system.
Bacteria can convert nitrogen in the air into a form plants can use
An enzyme is a catalysts in living things.
A catalysts speeds up the process of breaking down molecules.
An example would be Lactose. It can be broken down by the enzyme Lactase.
A derived trait is a trait that the current organism has, but the previous one did not have.An ancestral trait is a trait that you, and your ancestors had.A vestigial structure is a structure that had some sort of use in your ancestor, but none in your current body
