Whales evolved from a land-dwelling ancestor similar to which of the following?
A) Bear
B) Elephant
C) Hippopotamus
D) Mastodon
E) Yak
C
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Which of the above sections of this molecule would be considered to be the aromatic portion of the molecule?
A. a B. b C. c D. a and b E. all of the above
Under wet and humid tropical conditions the least soluble material is the aluminum oxide called ________.
A. bauxite B. chert C. limonite D. peat E. humus
Which of these statements is FALSE concerning estuaries??
A) ?Larvae are often abundant there. B) ?Estuaries are in danger of development and pollution. C) ?Very few autotrophs live in estuaries, but many animals can be found there. D) ?Estuaries are places where saltwater and fresh water meet.
Which plate subducts when oceanic and continental plates meet and why?
A. The continental plate subducts beneath the oceanic plate because the oceanic plate is most dense. B. The oceanic plate subducts beneath the continental plate because the oceanic plate is most dense. C. The continental plate subducts beneath the oceanic plate because the continental plate is most dense. D. The oceanic plate subducts beneath the continental plate because the continental plate is most dense.