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What would most likely happen to the carbon cycle if there were no more plants on Earth?
Animals would consume more carbon.
O More carbon would be released from fossil fuels.
O Carbon would build up in the atmosphere.
Animals would perform more photosynthesis.
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All living organisms are composed of a. only one cell. b. at least 100 cells. c. at least three cells. d. one or more cells.

Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins

Which of these is true of the cytoplasm of an unfertilized egg? a. it is an unevenly distributed mixture of mrna, proteins, organelles, and other substances. b. it does not contain substances that are important in directing development. c. these substances are supplied by the sperm. d. it does not contain substances that are important in directing development. e. development is directed solely by the surrounding cells. f. it is a homogeneous mixture of mrna, proteins, organelles, and other substances. g. it does not contain substances that are important in directing development. h. these substances are produced by the dna of the fertilized zygote.