The correct answer is <span>depletion of glycogen.
A </span><span>depletion of glycogen or blood glucose levels most likely caused Anthony to not be able to finish the race. His blood glucose level likely fell due to a depletion in his liver glycogen. A depletion in liver glycogen causes a decline in energy needed for a physically taxing task such as running. In this case, Anthony was only able to walk and not run at mile12 of the race since his glycogen levels fell. </span>
Answer:
The left side of the equation will result in a rational number, which could be a non-perfect square.
Explanation:
According to the Pythagorean theorem, the sum of the squares of the legs of a right triangle is equal to the square of the hypotenuse.
Take 

As
,
Here, 29 is not a perfect square.
So, c is irrational.
If a is a rational number and b is a rational number, c could be an irrational number as the left side of the equation will result in a rational number, which could be a non-perfect square.
Some of them ran to Florida in search of freedom
Answer:
B. Guides
Explanation:
The park ranger is a singular subject, so instead of saying "park ranger" replace it with he or she, then add the words to see if they sound correct.
He/she guide the tourists doesn't sound quite right. It would sound better if the subject was plural. <em>Ex: </em><em><u>The rangers guide the tourists</u></em><em>...</em>So this eliminates answer A.
He/she guides the tourists sounds grammatically correct because it is.
Nah i'm just kidding. It sounds correct because the subject is singular. When you have a singular subject, the present tense verb must be plural. <em>Ex: He walks....It climbs....Lilah runs.</em> The rule applies to all of them.
P.S. Don't forget that the verb always applies to the subject in front of it, not behind it. So don't pit the words "guide/guides" with "the tourists" because you might get it wrong.