Answer the question below:   If Jim wants to raise the pH of his solution he should do what to the concentration of hydrogen ions inside of it decrease or increase?    Assuming that:  With a higher the concentration of hydrogen ions, a solution is more acidic and has a lower pH.
decrease

Answer the question below:   Jean and John were going to have a baby, and they are both in great shape. Jean and John are likely to have offspring in numbers that are greater or smaller?    Assuming that:  Genotypes with greater fitness produce more offspring and pass more copies of their alleles to the next generation.
greater

Answer the question below:   Joe's urine was almost clear; its water content was probably high or low?    Assuming that:  The darker the urine, the less water it contains.
high