Answer:
Oxygen
Explanation:
All cells need oxygen in order to operate properly. If Her respitory system isnt working correctly, her cells will start to not work which can lead to multiple issues such as shortness of breath, fatigue, muscle fatigue, brain fog, etc in short term. Long term/ more serious issues could be a collapsed lung, confusion, fainting, kindey failure, sever muscle weakness, etc.
The answer to this question is:
<span>What is the third basic component of an exercise program that includes cardio and flexibility?
"C</span>ardiorespiratory Endurance"
Hoped This Helped, <span>Marissawilliamson98
Your Welcome :)</span>
Cardiac exercises! They get your heart pumping blood quicker to strengthen it! :)
Answer:
Strong selection for change is acting on this gene.
Explanation: