35. which of the following is not a eukaryotic
organism?
a. cow
b. tortoise
c. shark
d. bacteria

true is the answer : )

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.

for a different answer set the answer would be because the oxygen in the water had depleted (apex)

not sure if this is what you'r looking for prokaryotes have organelles hope this out at least.