body systems that work together to defend the body against disease.
A. lymph node
B. immune system, lymphatic system, and cardiovascular system
C. active immunity
D. passive immunity
E. lymph nodes, adenoids, spleen, bone marrow, lymphatic vessels, tonsils, thymus, appendix
Select your answer:

Topics:
Metabolism Anatomy and Physiology Advanced Stretching SM2 Monoclonal Antibodies Pathology Introduction Cell Injury Cell Transport Cell & Bond All About Blood Confusion, Dementia, & Alzheimers Disease Renal & Neural Bones and Muscles Human Circulatory System Psychology, Psychiatry or Social Work Diabetes Mellitus Characteristics of Life & VirusesOther quiz:
Tenses › View Choose the past perfect continuous tense form of the sentence. “The children played in the park throughout the evening.”
A. The children played in the park throughout the evening.
B. The children have been playing in the park throughout the evening.
C. The children had played in the park throughout the evening.
D. The children had been playing in the park throughout the evening.
Human Urinary System › View
To regulate the level of ions in the blood are the importance of
A. reabsorption at proximal convoluted tubule
B. reabsorption at loop of Henle and distal convoluted tubule
C. secretion
D. ultrafiltration