14. Which answer correctly identifies the five levels of cell organization in a dog's
body from simple to most complex?
A. bone cells, bone tissue, femur (thigh bone), skeleton, dog
B. bone tissue, bone cell, femur, skeleton, dog
C. dog, skeleton, femur, bone tissue, bone cell
D. skeleton, bone tissue, bone cell, dog, femur
15. What level of organization in a body is the brain?
A. cell
B. organ
C. organ system
D. tissue​