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•Which of the following blood vessels carry blood away from the heart?
A. Arteries
B. Veins
C. Capillaries
D. All of the above

•The membrane that encircles a cell.
A. Organelle
B. Chloroplast
C. Central vacuole
D. Cytoskeleton
E. Mitochondria
F. Phospholipid bilayer

•Is the property of mass a measure of how heavy an object is?
A. Yes
B. No​