What graph are you referring to?
Answer:
Defenitely b, fossils, I don't think any of the others are right, But I could be wrong.
Answer:
The thrust of the air propels the balloon in the opposite direction
Explanation:
Plant cell have cell wall and animals cell don’t have
Plant cell have plastids and animal cell don’t have
Answer:
Gas exchange occurs at two sites in the body: in the lungs, where oxygen is picked up and carbon dioxide is released at the respiratory membrane, and at the tissues, where oxygen is released and carbon dioxide is picked up.
Explanation: