Topics: Human Body Systems Quiz
Which system includes the mouth, esophagus, and the small and large intestines?
A. nervous
B. excretory
C. respiratory
D. digestive
Select your answer:

Topics:
Cardiopulmonary Virus Inflammation and Healing Specialties: Neurological and Geriatric Nervous / Sensory System Genes and DNA Terms for The Skeletal System Living Organisms Mitosis The Cell Physiothearpy in Neurology Breathing System Circulatory, Artery, Vein - basics Dimensions of Wellness Bacteria & VirusesOther quiz:
Microrganisms › ViewChoose a product with bacteria that causes positive effects in our body
A. yogurt
B. Mushrooms
C. yeast
D. Chicken pox
Skin Appendages › View
The tiny grains of pigment deposited in cells that provide skin with its color are?
A. protein
B. keratin
C. melanin
D. collagen