Q: What is the difference between the daily high and the daily low? Choices: - weather forecast - margin of error - sunrise and sunset - tidal change A:
tidal change
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Q: A biofilm is a colony of prokaryotes that is stuck to what? Choices: - the middle - the bottom - skin - surface A:
surface
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Q: A _______ of biology is a fundamental concept that is just as true for a bee or a sunflower as it is for us. Choices: - hypothesis - theory - notion - principle A:
principle
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Q: Which action of the stomach helps chemical digestion by gastric juice? Choices: - peristalsis - chewing - contraction - churning action A:
churning action
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