Why does continental drift theory not help explain the distribution of placental mammals?
A) Placental mammals were agile enough to cross all continental barriers
B) Placental mammals evolved after the breakup of the major plates
C) Their fossils were subject to more deformation
D) We just haven't located enough fossils of them
E) None of the choices is correct
Correct Answer:
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Q16: What ocean zone is deepest?
A)Intertidal
B)Pelagic
C)Upwelling
D)Bathypelagic
E)None of the
Q17: Which is NOT correct concerning animal dispersal?
A)Emigration
Q18: High-oxygen,bubbly streams are described as
A)benthic.
B)pelagic.
C)lotic.
D)lentic.
E)estuarine.
Q19: A terrestrial environment represented by a major
Q20: What is a characteristic of a temperate
Q22: The terrestrial biome having the greatest diversity
Q23: Lotic refers to running-water habitats,and standing-water habitats
Q24: It is thought that the northern landmass
Q25: A family tree based on known vicariant
Q26: The theory of continental drift is supported
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