To reduce drag whales have eliminated
A) external ears.
B) pectoral fins.
C) external appendages.
D) mammary glands.
E) flukes.
Correct Answer:
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Q20: Pinnipeds molt
A) in the ocean.
B) on shore.
C)
Q21: It is believed that cetaceans evolved from:
A)
Q22: The following are all similarities between sirenians
Q23: Baleen plates are composed of:
A) calcium carbonate.
B)
Q24: The food of most baleen whales consists
Q26: The sirenians
A) rest on shore.
B) bear young
Q27: Whales, dolphins, and porpoises all belong to
Q28: Bubble nets for confusing and trapping plankton
Q29: Myoglobin is a protein found in the
Q30: Adaptations for deep diving in cetaceans include
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