When a surface is impervious, it
does not allow the water to
percolate into the soil and into the
groundwater. the water then is
considered to be
__ water.

Groups of organisms with low biotic potential, such as gray whales, that produce at most one offspring every other year a) are r-selected b) are k-selected c) are not subject to density-dependent limiting factors d) show the initial stages of the extinction process e) have escaped from the processes of natural selection and adaptation

What will happen to a population of predators if there is a sudden, temporary increase in the number of prey? a. the population of predators will be uniform with no change. b. the population of predators will increase first and then decrease slowly. c. the population of predators will increase continuously.

What is a traditional chinese touch therapy involving finger pressure applied to specific areas of the body to restore the flow of qi.