Which two explanations are based on personal beliefs? A. Observations made using telescopes can predict how a
constellation's shape will change.
B. People who are born under a certain astrological sign have a
tendency toward certain personality traits.
c. Satellite obserzlutions show that North America is moving at a
rate of a few millimeters per year.
D. Chemical data collected from rock formations show that Earth is
billions of years old.
E. The arrangements of stars into constellations happened as a
result of the actions of supernatural beings.

Both male and female gametes are created during the process of meiosis. the formation of male gametes is called spermatogenesis. after telophase il of spermatogenesis, there would be are all genetically male gametes created that

Clara wrote the following hypothesis for an experiment about acidophilic bacteria. bacteria cells will stop dividing in a basic (alkaline) environment because of the high ph. which statement is the best way to restate the hypothesis so that it is more specific? growing acidophilic bacteria in some environments will cause the cells to stop dividing because of ph. if the ph of their environment is changed, acidophilic bacterial cell division will be affected. if the environment of acidophilic bacterial cells becomes alkaline, the bacteria will stop dividing. the more alkaline an environment, the less cell division will occur in bacteria.

Which of the following statements best distinguishes a hypothesis from a theory? a. theories are hypotheses that have been proved. b. hypotheses are guesses; theories are correct answers c. hypotheses usually are relatively narrow in scope; theories have broad explanatory power. d. theories are proved to be true; hypotheses are often contradicted by experimental results.