Hyperphysics.phy-astr.gsu.edu
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Hope this helps!
Out of the following given choices;
Select one:
a. hydrogen ions
b. carbonic acid
c. carbonic anhydrase
d. water
The answer is C. carbonic anhydrase is found in red blood
cells and is used to catalyze the forward
and reverse reactions of H2O + CO2 ---à H2CO3 in tissues and
lungs. However, in the plasma, this
reaction is spontaneous in the presence of
water and carbon dioxide (but slower to
that of RBC). It is important in the regulation of pH of blood. The carbonic acid dissociates into H3 + and - HCO3 ions and back to carbonic acid in an equilibrated
and balanced reaction.
Explanation:
Though cases of a dog being affected by poison ivy are rare, if you have a canine companion with sensitive skin, you should keep him away from the plant, just in case. “After being in an area with poison ivy or oak, you should wash your dog,” Nold suggests.
It happens when the two groups become sufficiently different and the two can no longer interbreed. A known example of speciation is the London underground mosquito where it formed a new species within the existing genus. There are examples in micro-evolution but not in macro-evolution.
