The kidneys secrete an enzyme called renin
To much gas has build up in them? I guess
The answer is She is moving to the traffic light, but she is not moving relative to the bus driver.
Hope I helped
Answer: Photosynthesis
Explanation: Photosynthesis removes CO2 from the atmosphere and replaces it with O2. Respiration takes O2 from the atmosphere and replaces it with CO2.
