Select your answer:
Topics:
CVA Respiratory, Cardiovascular & Oncology Pathogens, Disease and Immunity Fluid and Electrolytes Tissues of The Body Philosophy Diseases of Digestive System Major Nutrients Macromolecules & Nutrients Blood Formation and Clotting Body Systems & Anatomical Terms Body Fluids Microbial Growth & Nutrition Who am Eye? PulmonologyOther quiz:
Endocrine System › ViewProgesterone 孕酮 is secreted by
A. Testis 睾丸
B. Pancreas 胰腺
C. Ovary 卵巢
D. The anterior lobe of the pituitary gland 脑垂体前叶
Structures and Functions of Living Organisms and Genetics › View
Why do the other body systems depend on the circulatory system?
A. It protects the organs of other body systems.
B. It produces energy for the other body systems.
C. It picks up waste materials from other body systems.
D. It sends messages from the brain to the other body systems.