Answer:
A camel stores fat in its hump, while the cactus stores water in its thick stem.
Explanation:
Oxygen is 21% and nitrogen is 78% so combined is 99%
Wood is a Heterogeneous Mixture.
Hope this helps
They function as catalysts, they transport and store other molecules such as oxygen, they provide mechanical support and immune protection, they generate movement, they transmit nerve impulses, and they control growth and differentiation