Which isotope is best for dating metamorphic rocks? carbon-14 potassium-40 radon-222 uranium-235

Cells tend to have a relatively small and uniform size. why aren’t cells larger?

Drag each tile to the correct location. match each trait that an organism displays to a reproductive strategy.

Under the soviet system, the government a. controlled all forms of communication. b. allowed newspapers to print whatever they wanted. c. controlled editorials but not the reporting of news. d. encouraged access to a wide variety of news sources. select the best answer from the choices provided a b c d