1) a five carbon ribose sugar
2) a phosphate molecule
3) one of four nitrogenous bases: adenine, guanine, cytosine or uracil
Answer:
Birds do not have a diaphragm; instead, air is moved in and out of the respiratory system through pressure changes in the air sacs. ... Bird lungs do not expand or contract like the lungs of mammals. In mammalian lungs, the exchange of oxygen and carbon dioxide occurs in microscopic sacs in the lungs, called 'alveoli.
Explanation:
C. The effect of a particular food has on the rate and amount of increase in the blood glucose level.