Francesco Redi designed an experiment to test the notion of spontaneous generation. He left the first jar of meat open to the air and covered the second jar. The first jar would be called the ________ jar
A) conclusive B) hypothetical C) control D) experimental
C
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The evolution of roots was an adaptive trait in early land plants because:
A. vascular tissue helps transport sugars. B. they allowed plants to absorb water from submersed stems. C. they allowed vascular plants to expand into drier habitats. D. they inhibit plants growing too tall. E. they reduce the rate of plant dispersal.
Where in a plant cell is chlorophyll found?
a. on the outer chloroplast membrane b. in the cytoplasm of the cell c. in the stroma d. in the thylakoids e. none of these
Cancer may arise as a result of
A) mutations associated with viral infection. B) mutations associated with chemical mutagens. C) mutations associated with radiation. D) spontaneous mutations. E) All of these
Starting with one molecule of citrate and ending with oxaloacetate, how many ATP molecules can be formed from oxidative phosphorylation (chemiosmosis)?
A) 1 B) 3 C) 4 D) 11 E) 12