Across
- 6. has blood vessels, heart, red and white blood cells
- 7. has smooth, cardiac, skeletal
- 8. mouth, esophagus, stomach, small intestine, large intestine
Down
- 1. nose, mouth, lungs, diaphragm
- 2. has glands and hormones
- 3. has the brain, spinal cord, neurons, and sensory organs
- 4. first line of defense
- 5. has bones, joints, tendons, cartilage
- 9. 2nd line of defense