Select your answer:
Topics:
Infectious Diseases Nervous System: Diseases/Problems/Illnesses Cells and Organ Systems Bone Physiology DNA and RNA Structures Sarcomere Anatomy Cardiorespiratory or Vascular Systems Consciousness and Sleep Physical Therapy and Rehabilitation Hearing Impairment Cell Theory & Melanoma Chemistry Conjunctivita Vitamin Respiratory SystemOther quiz:
Male Reproductive System › ViewWhat is the primary sex hormones of males?
A. Prostate gland
B. Testosterone
C. Urine
D. Semen
Body Systems › View
What organ decides when you breathe?
A. The lungs
B. The brain
C. The stomach
D. Nerves