Try to get the highest cellular respiration rate possible in the sim.

Which of the following produces carbon dioxide? a. plants b. animals c. decomposers d. all of the above

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

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm