Answer:
None
Explanation:
Methylene is an organic compound and organic compounds consist of hydrogen atoms and Carbon atoms in n this case Methylene(CH2) has one carbon and two hydrogens .
Answer:
molecules, elements
Explanation:
molecules are a mix of elements
They provide a place for marine life to flourish, that would otherwise most-likely go extinct because of the constant decrease of natural reefs in our oceans.
Answer:
it is actually the cell membrane.
Explanation:
the cell wall can only be found in plants
