Figure below shows four components of blood. Which component helps carry oxygen throughout the body?
A. 
B. 
C. 
D. 
Select your answer:
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Vision › ViewThe reason we are unable to see clearly underwater is because:
A. images on our retina are crisscrossed by a network of veins and are amplified by water.
B. the water interrupts the organisation of the visual process and we are unable to make sense of it
C. the cornea of the eye is designed to refract or bend light travelling through the air, not water.
D. the cornea reaches its absolute threshold under water, which therefore blurs our vision.
Enzymes › View
What is the role of inhibitors in enzyme reactions?
A. Inhibitors increase the rate of enzyme reactions
B. Inhibitors decrease the rate of enzyme reactions
C. Inhibitors denature enzymes
D. Inhibitors have no effect on enzyme reactions