The answer to this one is D
Answer:
C
Explanation:
Membranes will allow and inhibit certain ions/molecules. I don't believe it can distinguish whether the molecules are harmful or beneficial!
Answer: B. Lungs
Explanation:
The lungs are the only organ in the body that can float on water.
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A
<span>Archaebacteria is usually found in extreme environments and eubacteria is not found in environments. Also, eubacteria cell walls contain peptidoyclan. They are both prokaryotic cells.
Hope this helps!
-Payshence xoxo</span>
