★ Circulatory System Quiz
What function does the heart do?
A. Protects organs and produces red blood cells.
B. Generates heat.
C. Breaks down food into nutrients.
D. The heart is a pump, which moves the blood. The arteries and veins are the pipes where the blood flows.
Select your answer:
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DNA Replication › ViewWhich organelle is DNA usually found in?
A. cell membrane
B. vacuole
C. chloroplast
D. nucleus
Cardiovascular System › View
Which one of these molecules has the highest Affinity
A. HB A
B. HB F
C. Myoglobin