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6. What can substances move by?
- Diffusion, osmosis and active transport
- Diffusion and osmosis
- Active transport
7. What do all life processes need before they can happen?
- Gases or other dissolved substances like CO2 and H2O which are needed for photosyntesis
- Only gases like CO2 and H2O
- Nothing
8. What is osmosis?
- The movement of water molecule through a partially permeable membrane from an area of high concentration to an area of low concentration
- The movement of water molecule through a partially permeable membrane from an area of low concentration to an area of high concentration