If you were trying to decide if an unknown organism is an archaebacterium or a eubacterium you would look at the cell membrane because?

a. ribosomes can't be used to distinguish archaebacteria from eubacteria.
b. only eubacteria have ribosomes.
c. only archaebacteria have ribosomes.
d. the ribosomes in archaebacteria and eubacteria are different.

What links the two strands in a dna helix together in the middle? a. phosphate groups b. sugar rings bonded together c. proteins d. bases with hydrogen bonds

Plz ! ive been stuck on this forever

In the united states there are strict fishing seasons and limits, but not all countries enforce similar laws. in bangladesh there are few if any fishing restrictions. what might be the reason for less restrictions in smaller countries like bangladesh? a) the united states is the only country worried about overfishing. b) the united states wants to limit the supply of fish to increase the price. c) bangladesh and smaller countries have an unlimited supply of fish in their coastal waters. d) small countries, such as bangladesh, are practicing subsistence fishing, taking only the fish needed to survive.