Which element cycles through both photosynthesis and respiration? a magnesium b nitrogen c oxygen or d sodium

Which class of molecules contains the amino group, nh2 (a) sugars (b) water (c) proteins (d) hydrocarbons

Which statement describes john tuzo wilson’s contribution to the theory of plate tectonics?

Yeast cells reproduce quickly by budding. this is a form of reproduction so all the yeast cells a) sexual; vary b) asexual; vary c) asexual; are identical d) sexual; differ from the parents submit hint structures and functions of cells cellular reproduction