What became the dominant life forms on the planet as the oxygen became more abundant?

Found evidence that the continents were joined together at one time.

What are chlorofluorocarbons made of

Select the correct answer. which scenario describes unethical lab behavior? a. danny stores the chemicals required for his experiment in flasks and beakers. b. anna publishes the results of her experiment on the growth rate of saplings. c. jason repeatedly runs an experiment until he gets the results he desires. d. mia records her observations of an experiment precisely and accurately. resetnext