Which component of your blood do inhalant vapors replace?
a. iron
b. oxygen
c. nitrogen
d. red blood cells

What enzyme is most important for dna replication and why?

Which statement is the best summary of the model? a-a series of aerobic and anaerobic reactions take place in cells b- the sun's energy moves through trophic levels in a food chain c-light energy is converted into stored chemical energy plants.d- food molecules are broken down in the cells if living things.

How long does it take a skateboarder going 6.0 m/s to come to a complete stop if she slows down at a rate of 2.0 m/s^2