What is one possible reason for why Burmese and African pythons are successful invasive species in the Florida Everglades?
A. A similarity in climate between the Everglades and the climate of origin for the snakes
B. The presence of the American alligator as a common predator in the Everglades
C. The frequent occurrence of wildfires in the Everglades
D. The high natural biodiversity of the Everglades
E. The fact that all snakes are protected under Florida law
Answer: A
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Diatoms flourished during the Miocene, likely because increased volcanism meant oceans were enriched in the
element ____________________, which diatoms use to build their skeletons. Fill in the blank(s) with the appropriate word(s).
The shape of a country's population pyramid
A) may be used to predict maternal mortality rates. B) cannot be used to determine infant mortality rates. C) may be used to estimate the country's dependency rate. D) cannot be used to estimate the country's sex ratio. E) is determined primarily by the combination of its crude birth rate and its crude growth rate.
Autotrophs that dwell in dark caves, in wells, or on the ocean floor often depend on which of the following biogeochemical processes?
A) chemosynthesis B) photosynthesis C) nutrient leaching D) nitrogen fixing
Divergence in the atmosphere is best defined as:
A) air piling up in one area. B) clouds separating and dissipating. C) warm air moving away from cold air. D) air moving out of an area.