Which best describes the blood flowing in an artery? A. It is oxygen rich
B. It contains no red blood cells.
C. It moves toward the heart.
D. It is oxygen poor.

Process of elimination is helpful for this question.

You can already remove B, and D, because if you were to be taking these classes, you would know that blood obviously has red blood cells in it, and it is rich in oxygen.

This leads into the
of A, which is the correct answer of “It is oxygen rich.”

C is a no contest answer because blood in the arteries actually moved away from the heart, not towards it.

Hope this helps :)))

The right answer is c.sandstone.

The answer to this will be from your lab notes/procedure. it would be best to ask another student who participated in the lab as we do not know what was done, what enzyme or if the temperature is celsius or fahrenheit. if i were to guess though i'd say the rate stopped due to enzyme denturing at high temperature