A is correct. 10% of 100 is 10, so therefore, 10 members of the species have that particular phonotype. Hope this helps!
<span>D. can incorporate new scientific discoveries. should be the answer. Hope I helped!</span>
The arrow representing the activation energy will decrease in magnitude.
This arrow will be beginning at the x-axis and going up to the maximum of the graph. The reason that its magnitude decreases is because enzymes provide alternate pathways to reactions; the new pathway has a lower activation energy, so the reaction occurs faster when an enzyme is added. This is why enzymes are referred to as biological catalysts and are a vital part of an organism's body