The first two steps of cell respiration produce little ATP. Why then, are they necessary in order for cell respiration to be successful?
-Cell respiration produces water during these steps, which is a goal of the
process.
-The process does not require the first two steps, they are just helpful if they can
be performed.
Energy-carrying electrons are harvested during these steps.
The first two steps produce carbon dioxide.

1. when the tempature rises,your sweat glands and then springs into action making perspiration. some sweat evaporates with your skin taling heat with it.2.some of the blood pumped by the heart travels by your lungs to get rid of carbon dioxide and pick up oxygen.3.saliva produces by, you drinking water which saliva is 98% of. when mucus builds up in your body it also creates saliva as well as, antibacterial compunds.4.when the core body tempature drops, the shivering reflex is triggered to maintain homeostasis. for example: when you get out the pool you start to shiver because it is cold.