Answer:
Explanation:
Ok so it will be the first one but it migt be the second on for the simple fact that they both use CO2 and O2
I might be wrong because i am working on that to in my Bio class
<u>Answer:</u>
C is the answer.
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<u>Explanation:</u>
Organelles (the smallest in this situation) are what you can find inside a cell (example: nucleus, mitochondria, etc..).
Cells are what make up tissues (such as muscles).
Tissues make up organs (such as the heart) and organs make up organ systems (such as the circulatory system).
Active transport.
Passive transport, being its opposite, requires no energy at all. Therefore, active transport would require energy or ATP in order to move across.
Hope this helps!