★ Organ Systems Quiz
Which body system is responsible for carrying oxygen and carbon dioxide in and out of your body?
A. respiratory
B. muscular
C. reproductive
D. nervous
Select your answer:
Topics:
Biological Organisms Classification Hormones Gaseous Exchange in Humans Eczema Molecular Biology Muscular System Renal Pharmacology Health Related Fitness Thyroid Gland Cellular and Sexual Reproduction Eye in Color Vision Proteins SSTI and Bone Infections The Brain DiversityOther quiz:
Bacteriology › Viewwhat is the purpose of staining of bacteria?
A. to increase visibility
B. enhance morphological features
C. to preserve them
D. all of the above
E. none of the above
Skeletal System › View
How many bones are in the average human body
A. 120
B. 453
C. 206
D. 302