Medical Quiz

Circulation and Excretion Quiz

Water across the gills of fish and the blood in the gills does in opposite direction enhancing the diffusion of oxygen from the water into the blood. What is this flow in the opposite direction called?

A. undirectional flow

B. countercurrent exchange

C. atriventricular exchange

Select your answer:
A  B  C  D  E 


Beneath the Skin Integumentary and Musculoskeletal System Systematic Bacteriology Body Systems and Medical Sciences Blood clotting Joints Mechanical Digestion Transport system in Living Things (Human) Organ Senses and Locomotor System Bacteria Digestion Human Anatomy and Physiology - Types of Tissues Viruses and Prions Trauma Anatomical Terminology

Other quiz: Healthy Living

After how many minutes should you exercise after food?

A. 17 mins

B. 39mins

C. 20mins

D. 65 mins