★ Body System Quiz
What are the main organs in the immune system?
A. Bone, hand
B. Bone marrow, spleen
C. Bone, movement
Select your answer:

Topics:
Cell Reproduction Living Organisms DNA Structure and Function Cell Review Respiration Anatomy and Physiology Fluid and Electrolytes Vet Terminology Breath Cytology and Histology Fats and Coronary Heart Disease Physical Therapy and Rehabilitation Urinalysis/ Immunology Make up Human Organs What is Psychology? GastroenterologyOther quiz:
Nail › ViewA nail condition in which blood clots form under the nail plate due to a small injury of the nail plate is;
A. bruised nails
B. blue nails
C. abnormal nails
D. bruised onychia
The Skeletal System › View
Which of the following is a hard substance that keeps bones from rubbing together?
A. Joint
B. Tendon
C. Ligament
D. Cartilage