I think b. Proteins are polymers of amino acids is the correct answer
Species could compete for water, food, land, etc.
A its a its aa okn it. W sjjajaizhbaiaijabsbdbjajajwns
The main difference between prokaryotes and eukaryotes is the presence of nucleus in eukaryotes and its absence in prokaryotes. Also, prokaryotes are unicellular, so one cell is a whole organism. On the other hand, eukaryotes are mainly multicellular, and thus more complex. More complex DNA is inside the nucleus in the eukaryotes which enables them to conduct a wider range of functions. Prokaryotes, as a single cell, have simple functions present.
