Question

which is bigger? a water molecule (made of 2 hydrogen atoms and one oxygen atom) or a red blood cell? water molecule red blood cell they are about the same size

Explanation:

Red blood cells are microscopic cells, typically around 6 - 8 micrometers in diameter. Water molecules are extremely tiny, on the order of picometers in size. So red blood cells are much larger.

Answer:

B. red blood cell