Brittle stars employ a unique evasive technique that involves detaching an arm if grabbed by a predator
a. True
b. False
True
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An inversion represents an extremely stable atmosphere because air that rises into the inversion
will eventually become __________ and __________ dense than the surrounding air. a. warmer, less b. warmer, more c. colder, less d. colder, more
When mT air flows inland from the Gulf of Mexico, it
A) results in long-lasting storms characterized by steady but light rainfall. B) usually veers west toward the Rocky Mountains. C) undergoes an increase in the temperature lapse rate. D) loses heat to the land surface.
Living organisms draw their essential elements from
A) the atmosphere. B) the lithosphere. C) the atmosphere and lithosphere. D) the atmosphere, lithosphere, and hydrosphere.
Groups of organisms that may have been separated for millions of years may be brought together in new combinations primarily by
A) shifting weather patterns. B) changes in ocean currents. C) plate tectonics. D) changes in Earth's magnetic fields.