Answer:
Biological macromolecules are organic, meaning they contain carbon. In addition, they may contain hydrogen, oxygen, nitrogen, and additional minor elements.
Explanation:
A in Bio last year.
Astronomy can best be described as a "<span>a. study of objects beyond earths atmosphere", although the subject of astronomy can be much more complicated. </span>
Answer:
False, all plants cells have cell membrane, in addition most of them have also cell wall. They have both
