Answer:Oxygen
Explanation: During cellular respiration, glucose is broken down in the presence of oxygen to form carbon dioxide, water and energy. Glucose + oxygen --> carbon dioxide + water + energy.
The balanced chemical equation for cellular respiration is C6H12O2 + 6O2 --> 6CO2+ 6H2O + Energy
Answer:
the appearance of the peacock shows he is healthy, and if the peahen mates with him, it is likely that their offspring will also be born healthy. you would want to reproduce with the fittest individuals of your species and guarantee your species will continue to thrive.
Explanation:
Answer:
The heart valves
Explanation:
The heart valves prevent blood from flowing in the wrong direction in the heart. The valves are held in the proper place because of the chordae tendinae.