<span> Enzymes are usually proteins but some also contain nucleic acids (RNA in particular) and the list of chemical reactions that are catalyzed by RNA has been expanding. So the answer is proteins.</span>
In my opinion, chloroplasts and mitochondria can't live outside the cell now because mitochondria ensure the energy for the cell and the chloroplasts is important for photosynthesis. Just my opinion.
A. Polysaccharide, this is because polysaccharides have cellulose which make the grass stand up.
Answer:
62°F (17°C) to -60°F (-51°C) at the tropopause.
