What is proper technique for abdominal exercises? A. - keep your chin tucked
B. - keep your heed in line with your spine
C. - don't strain your neck
D. - all of the above

Articular cartilage to shocks and prevents friction between parts.

Which of the following must be treated under the care of a physician and is mainly considered a medical condition? a. scoliosis b. lordosis c. kyphosis d. all of the above

Describe factors that can make dishes in restaurants have nutritional values