Answer the question below:   As we move slower we wind up getting hotter or cooler?    Assuming that:  The higher the temperature, the more energy the particles have and the faster they will move and diffuse.
cooler

Answer the question below:   A family that is very small, compared to one that is enormous, will have allele differences that are smaller or greater?    Assuming that:  The smaller a population is, the more allele frequencies may drift.
smaller

Answer the question below:   A slow stream is capable of moving boulders or sand?    Assuming that:  In erosion, a slower moving stream will only carry smaller particles.
sand

Answer the question below:   Ease of mobility increase or decrease when the animal is decreased in size?    Assuming that:  The larger the animal, the heavier the exoskeleton, making movement more difficult.
increase