Dylan is making a model of how cells are organized in humans. He needs images to replace the 1, 2, and 3 in the model.
Which images will complete his model?
A 1.blood cell 2.vein 3.heart
B 1. verve cell 2.brain 3.nervous system
C 1. lining 2. stomach 3. digestive system
D 1. muscle 2. bicep 3. triceps muscle