<em>Answer </em><em>is </em><em>- </em><em>D </em><em>the electron transport </em><em>chain </em><em>combined </em><em>with</em><em> </em><em>chemiosmosis </em>
Explains the heart and breathing rate
Your answer is "Hydropower uses the kinetic energy of water to generate electricity"
The answer is A- sperm and egg. gametes are reproductive cells in mammals, so sperm and egg would be the correct.