plants give off oxygen and take in carbon dioxide and animals take in oxygen and give off carbon dioxide.
Answer:
the answer to this is A. true
Answer:
Life assembled from chemical building blocks.
Option 1
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Answer:
There are two major ways that molecules can be moved across a membrane, and ... is trying to be evenly distributed everywhere, like dropping food coloring in water. ... These channels are almost always specific for either a certain molecule or a ... When a molecule moves down its concentration gradient is it participating.
