Question

___________ carry oxygen throughout the human body.

A) Veins
B) Blood plasma
C) Red blood cells
D) White blood cells

Answer 1

This answer is easy it would be the red blood cells.The red blood cells are the ones that go threw the heart to receive fresh oxygen, while the oxygen that was used becomes carbon monoxide. Which will get realest back into the lung completing a cycle. This cycle is called the repertory system.

Answer 2

C. Red blood cells carry oxygen.