25) Which of the following is not true?
A) All mammals are chordates.
B) All chordates are vertebrates.
C) All reptiles are vertebrates.
D) All mammals are vertebrates.
E) All vertebrates are chordates.
Answer: B
Diff: 3 Page Ref: 27
Topic: 2.2 Human Evolution
Type: (Conceptual)
Rationale: To choose the correct answer, students must understand that some animals have dorsal nerve
cords without having spines.
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