Use what you know about atmospheric circulation and seasonal changes in the sun’s orientation to earth to explain the highly seasonal rainfall in the tropical dry forest and tropical savanna biomes. (Hint: Why does the rainy season in these biomes come during the warmer months?)
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Why is the Arctic fox declining in numbers?
A) Red fox are outcompeting them as they expand north.
B) Resource availability is lacking.
C) They are up against their thermal maximum with increased global temperatures.
D) Melting ice reduces suitable habitat.
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A measure of diversity between sites is called
A) alpha diversity.
B) beta diversity.
C) gamma diversity.
D) zeta diversity.
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What is the main cause of sea level rise?
A) reduced summer sea ice
B) warm water expanding
C) sinking land
D) reduced snow cover
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Which part of the globe is responsible for the largest increase in NPP?
A) the Arctic
B) the United States
C) the Amazon rain forest
D) North Africa
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How far has the global sea level risen over the past 100 years?
A) 0 mm
B) 15 mm
C) 150 mm
D) 15 cm
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Which of the following is seen as a significant predictor of increased diversity in trees?
A) primary productivity
B) wind patterns
C) decreased temperatures
D) decreased precipitation
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Variation in species richness of terrestrial species in North America correlates most strongly with estimates of
A) actual or potential evapotranspiration.
B) annual temperature.
C) solar radiation.
D) precipitation.
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Which of the following patterns occurs with respect to geographic distribution of species diversity?
A) Diversity increases with increasing latitudes.
B) Diversity increases with increasing longitudes.
C) Diversity increases with decreasing latitudes.
D) Diversity increases with decreasing longitudes.
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Which taxa contain the largest number of known species?
A) coleoptera
B) plants (embryophytes)
C) fungi
D) crustaceans
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