Answer:
It helps cells make proteins.
It provides a source of water
It provides form of usable Nitrogen.
It removes carbon dioxide from the atmosphere.
It destroys harmful bacteria.
Answer:

Explanation:
The formula for density is ρ
(where
represents mass, and
represents volume).
With this formula, we can calculate the density of the object:
ρ 
Hope this helps :)
Carbohydrate is what you are looking for
Biomimicry is human's attempt to "mimic" animals and nature in innovations/products so that they will be more efficient and sustainable
Answer:
The answer is Carbon.
Explanation:
Carbon is the basic element where the most energy is stored and used as a fuel.