Most prokaryotic cells reside
A) in lakes, rivers, and oceans.
B) in and on nonprokaryotic organisms (including humans and other animals).
C) in the oceanic and terrestrial subsurfaces.
D) on Earth's surface.

Question

Quizplus · Accepted Answer

Prokaryotic cells are found not only on Earth's surface, but also in the oceanic and terrestrial subsurfaces. They are able to survive in extreme environments such as deep sea vents and hot springs. Although some prokaryotic cells can be found in lakes, rivers, and oceans, the majority of these cells are found in subsurface environments. Prokaryotic cells also play important ecological roles in soil, where they aid in nutrient cycling and decomposition. Therefore, option C is the most accurate answer. Option B is partially correct, as some prokaryotic cells can be found on nonprokaryotic organisms, but this is not the most common location for them.

Most Prokaryotic Cells Reside