Coevolved pollinators receive __________, pollen,
or another reward for visiting a flower. Fill in the blank(s) with the appropriate word(s).
Answer: nectar
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Which genus would you MOST likely find in the photic layer of the oceans due to its abundance and aerobic chemoorganotroph phenotype?
A) Acetobacter B) Nitrosomonas C) Paracoccus D) Pelagibacter
The discovery of Tiktaalik roseae was significant for which of the following reasons?
A. It provided evidence that terrestrial vertebrates are descended from fish. B. It provided evidence that birds and dinosaurs are closely related. C. It was the first fossil to be found with soft parts preserved. D. It provided evidence that the continents were once linked together. E. It was the first fossil from which DNA and other macromolecules were successfully extracted.
Which of the following organisms causes plague?
A. Helicobacter pylori B. Bordetella pertussis C. Campylobacter jejuni D. Yersinia pestis
What serves as a pressure release valve for the force of the air waves passing through the cochlea?
a. eustachian tube b. oval window c. tympanic membrane d. round window e. auditory nerve