Answer:
Semi-permeable membrane
Explanation:
In semi-permeable membranes, only some substances can pass through. Sometimes, some can also pass through the channel protein molecules or transport proteins on the cell membrane.
Answer:
Climate change is a <em><u>result of</u></em> environment change.
Explanation:
Answer:
What stages of aerobic respiration needs oxygen to happen?
The Krebs cycle and the electron transport system
