2. Are bacteria the only
prokaryotic beings?

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Prokaryotic beings are into
two big : archaebacteria and
bacteria ( last also known
eubacteria).

Compared to , archaebacteria
have basic , like the chemical
of their plasma
and cell wall different enzymes
related DNA and RNA .