The figure suggests
A) primary productivity dictates diversity.
B) diversity changes seasonally.
C) a high gamma diversity.
D) birds are more diverse at northern latitudes.
B
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This example represents what type of competition?
a. intraspecific b. interspecific
Stomata generally open in response to ____
a. the release of abscisic acid by the roots b. a drop in CO2 concentration in leaf air spaces c. exposure to red light d. a drop in O2 concentration in leaf air spaces e. an increase in CO2 concentration in the leaf air spaces
The exclusionary rule is the Supreme Court rule that states that ______.
A. illegally seized evidence cannot be used to obtain a conviction B. special regulations promulgated by the president to keep foreign aliens from entering the country apply only during a national crisis C. a defendant's previous record cannot be raised in a trial D. evidence not related to a crime must be excluded from a person's trial
Within the ocean, temperature gradients occur in the water column. Which best describes how temperature variations affect the nutrient levels at the surface?
A) Nutrients are decreased near the surface because upwellings force nutrient-rich water towards the warmer bottom and nutrient-poor water to the colder surface. B) There are always many more nutrients at the warmer surface than in the colder deeper water. C) The nutrient level at the surface is not affected by temperature variations. D) Nutrient levels at the surface increase because upwellings force nutrient-rich water from the colder bottom to the warmer surface.