An entire DNA molecule is split down the middle and the bases on each side are used as a pattern for a new strand when DNA is A. transcribed
B. mutated
C. complemented
D. replicated

Which term describes the number of waves that pass a given point in a given time? crest frequency trough wavelength

Examine the air pressure map. which type of line is shown on the map?

Which of the following types of pollution is most responsible for large numbers of deaths worldwide because of unsafe drinking water? (a) nutrient pollution (b) thermal pollution (c) pathogen pollution (d) sediment pollution