which of the following statements is true thymine pairing with adenine is a DNA mutation t t and t t p plants have the same genotype BB and BB flowers have the same phenotype intelligence is determined by a single genes

What is point source pollution of an aquatic ecosystem? a) pollution of freshwater sources b) pollution from many sources that combine into one c) pollution that occurs over a wide area; water that runs off from fields, parking lots, and other land surfaces d) pollution that can easily be identified with a single discharge source, such as an open pipe which drains into a body of water