I would say that active transport is the answer because it's from LOW concentration to HIGH concentrations, so it's going against the concentration gradients.
B. Mitochondria
The mitochondria is where ATP is made, hence why it is often called the "powerhouse" of the cell.
Level of the carry out airways from the nose or mouth.
Answer:
Humans/Animals
Explanation:
Humans breathe in oxygen but when it comes back out it comes through as carbon dioxide. Plants are the exact opposite.
Answer:
How is skin like the dermal tissue plants? They both provide cover and protection, both secrete/produce useful substances to the organism's health, and both prevent loss of water.
Explanation:
hope this helps
