Select the most correct statement.
A. The immune system is closely associated with the lymphatic system.
B. Organ systems operate independently of each other to maintain life.
C. The endocrine system is not a true structural organ system.
D. Organ systems can be composed of cells or tissues, but not both.
Answer:A
Select the most correct statement.
A. The immune system is closely associated with the lymphatic system. B. Organ systems operate independently of each other to maintain life. C. The endocrine system is not a true structural organ system. D. Organ systems can be composed of cells or tissues, but not both.