Biology (College) quiz
165 questions across 1 difficulty level. Every attempt draws a fresh random set, so you can play as often as you like.
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Hard
165 questions
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Sample questions
- Many marine birds drink seawater yet maintain their internal osmolarity at a constant level that is hypoosmotic to seawater. Which of the following physiological strategies best explains how the birds maintain their tissue osmolarity?
- A recent theory concerning an unusual rise in asthma attacks following a thunderstorm proposes that while pollen grains at 5 microns are too large to enter the airways, their exposure to water precipitates the release of starch granules as a result of osmotic shock. The starch granules are small enough to enter the lower airways and trigger an asthmatic attack. If this theory is true, which of the following is a correct statement?
- Annelids and arthropods are similar to each other in that members of both phyla
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