Answer:
I'm sorry what?
Explanation:
carbon dioxide is a waste product of cells
Answer:
The concentration gradient is the driving force.
Explanation:
Passive transport of substance occurs when they are moved from the region of their higher concentration to that of their lower concentration. The concentration gradient is the difference in the concentration of substances between two regions or across the membrane. The concentration gradient of substances drives their passive movement. The passive movement of substances does not use metabolic energy. Simple diffusion and facilitated diffusion are two examples of this transport.
1. Deforestation = the burning of fossil fuels to make energy
2. Combustio = the logging of trees, which removes producers from the carbon cycle
3. Circulation= the process which brings up nutrients from deep ocean
4. Weathering= the wearing down of rocks over time.
5. Calcium carbonate= the primary component to mollusk shells and coral skeletons
I hope this helped.
Threatened species are species <span>which are vulnerable to endangerment in the near future.</span>
I think the answer is C, but it is hard to tell because it seems incomplete.
