The naturalist and father of zoogeography Alfred Russel Wallace noted a distinct difference in the fauna between several islands in the Malay Archipelego (present-day Indonesia)
He used these differences to delineate the boundary between the Australian and Oriental biogeographic realms. Which of the following best describes the reason for these differences? A) Aboriginal tribes in Australia have greatly altered the fauna of Australia relative to the Oriental realm.
B) A deep ocean barrier inhibited dispersal between the two realms.
C) The environments of Australia and Asia are completely different, despite their relative close proximity.
D) Asia and European traders interacted for centuries prior to Wallace's discovery. Among the results of this interaction was an exchange of European (Palearctic) fauna and Oriental fauna.
B
You might also like to view...
In a strong El Nino year, weather in the western Pacific tends to be
A. highly variable, extreme wet and dry cycles. B. wetter than normal. C. dryer than normal. D. normal, since El Nino's effects stay in the western hemisphere.
Suppose it is snowing outside and the air is saturated. The air temperature and dew point are both 15°F, and the actual vapor pressure is 3 mb. If this air is brought indoors and warmed to 75°F, what would the relative humidity of this air be, assuming that its moisture content does not change? (The saturation vapor pressure at 75°F is 30 mb)
a. 5 percent b. 10 percent c. 30 percent d. 50 percent e. 100 percent
What is the largest biogeochemical cycle?
a. Global Carbon cycle b. Global Nitrogen cycle c. Global Phosphorus cycle d. Global Silicon cycle
Road and rail networks constructed during the colonial era bear little resemblance to the distribution of population
Indicate whether the statement is true or false