A bee carrying pollen from one flower to another represents what kind of natural function?
A. ecosystem service
B. resource commodity
C. greenhouse effect
D. scientific model
Answer: A
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In seed plants, what stage in the alternation of generations is largest?
A) diploid gametophyte B) haploid gametophyte C) diploid sporophyte D) haploid sporophyte
A glacier covering at least 50,000 km2 and unconfined by topography:a
ice cap d. cirque b. continental glacier e. valley glacier c. moraine
A country's level of wealth is not the only factor determining the degree of automobile dependency in cities. ________ is also an important factor
A) Availability of transportation alternatives B) Whether a country is developed or developing C) Access to freeways D) Extent of urban decay E) Availability of hybrid vehicles
The gradient of a stream is
A. the volume of water passing a point per unit time. B. steepest near the stream's head (upper end). C. the product of velocity times width times depth. D. steepest near the stream's mouth (lower end).