What factor about cellular respiration are you testing? ( what makes the three bottles different?)

plato users

given bodies of water

pacific / arctic / indian / southern

[ a ] the caribbean sea

[ b ] the northern ocean

[ c ] the atlantic ocean

[ d ] the barents sea

with this being the given answers

instead of copying and pasting things off of tests or work done on computer which im sure you did, try and read over the question carefully