They have evolved into the best length for their environment.
Answer:
because the body requires a higher supply of oxygen
Explanation:
Cellular respiration can be divided into two different metabolic processes: aerobic respiration which needs oxygen (O2) and anaerobic respiration (without O2). The aerobic cellular respiration is produced when glucose molecules react with O2 in order to form ATP, the energy currency of the cell. Aerobic cellular respiration is the main source for generating ATP. During exercise, the requirement of O2 will be higher because the cellular respiration rate is increased in order to produce more energy (ATP). In consequence, during physical activities, it is required have to breathe faster to supply this O2, which enters into the lungs to be transported to all the cells through blood circulation.
<u>Light Energy to Chemical Energy</u> is the transformation that occurs during photo synthesis.
<em><u>I hope this helps!</u></em>
<span>Plants use energy from sunlight to turn water and carbon dioxide into an energy-rich sugar called glucose. </span>
<span>The first open releasing the energy of glucose in the cell is known as
</span><span>Glycolysis. </span>
