What causes water to runoff? A) The sun heats up Earth's surface.
B) Water does not soak into the ground.
C) There is a small amount of precipitation.

Babies with very low or very high weight are less likely to survive .

In a relatively small iguana population the allelic frequency is tracked for three generations. webbing is a recessive allele; no webbing is the dominant allele. during one very rainy spring and summer, a flood washes all the iguana without webbed feet out to sea. by the fall, and three generations later, you have the gene pool seen here.

What is a universal way that predation benefits the predator? predation increases mate availability. predation in defense of space. the predator gets the energy it needs to survive. the predator keeps parasites from hurting the species.