The crossopterygians were well-adapted to move onto the land because they had ____
A)lungs, but not necessarily a means for locomotion
B)a means for locomotion, but not necessarily lungs
C)cartilaginous skeletons
D)lungs and a means of locomotion
E)webbed feet
D
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The body of customary beliefs, social forms and material traits that constitute a group's distinct traditions would best describe a specific population's
A) folklore. B) political agenda. C) culture. D) education system. E) religious organization.
Because physical geography is so broad and complex, the scientific method does not apply
a. True b. False Indicate whether the statement is true or false
Acoustic profiling is used to study ________.
A. sediment size B. sediment distribution C. sediment size and sediment distribution D. seafloor structure E. sediment distribution and seafloor structure
A major disadvantage of solar power is ________
A) antiquated and unreliable technology B) decentralization of control of electrical energy C) lack of knowledge about long-term economic impacts D) its efficiency level compared to other types of power E) the uneven distribution of sunshine around the world