I believe it is D, all of these. :) I hope this helps! Please tell me if I'm wrong :)
During anaerobic respiration , cells make energy without <u>Oxygen</u>
the energy obtained during anaerobic respiration is 2 ATP
I believe that the answer to your question would be A. Heart Begins.
Maintaining internal conditions within an organism, especially when <span>outside conditions change is called homeostasis.
In Latin, the word homo/homeo means <em>the same, </em>and stasis means <em>state/condition. </em>
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