Answer: By breathing out
Explanation: Breathing in oxygen and breathing out CO2.
(Cows also release CO2 by farting)
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Answer:
Its internal volume enlarges and the cell membrane expands
Explanation:
You can’t really do that. You look for questions and ander them
Answer:
We will start with a very simple way of showing the arrangement of electrons around an atom. Here, electrons are arranged in energy levels, or shells, around the nucleus of an atom.
Explanation: