How many answers are there to a question in a dichotomous key flowchart?
a. Two
b. Any number of answers are possible.
c. Four
d. Three
Answer: a. Two
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What would result for global climate from a massive drop in atmospheric carbon dioxide?
A. An increase in ocean temperature B. Increased rock weathering C. A decrease in surface temperature D. Increased nitrogen availability E. A decrease in free oxygen content
Some bacteria can use sulfur instead of oxygen as a final electron acceptor. What would they produce during anaerobic respiration?
A. O2 B. S2 C. H2O D. H2S
Biological evolution occurs in ____ when specific processes cause genomes of organisms to differ from those of their
ancestors
a. individuals b. populations c. communities d. phenotypes e. genotypes
This tissue is found in the gut
a. A b. B c. C d. D e. E