Which of the following statements is true about lymph nodes? a. all lymph nodes have four main cavities. b. all lymph nodes are located in the same body part. c. all lymph nodes are shaped like beans. d. all lymph nodes are the same size.

Analyze the impact of the availability of health services in the community and the world. research various school and community health services for people of all ages such as vision and hearing screenings and immunization programs. identify situations requiring professional health services for people of all ages such as primary, preventive, and emergency care.