The great size and mobility of the vertebrates are likely the result of
A) lungs used for respiration.
B) four- chambered hearts.
C) increased brain size and complexity.
D) uterine development of offspring.
E) lightweight endoskeletons.
Correct Answer:
Verified
Q3: How does the nerve cord of chordates
Q4: The earliest vertebrates lacked
A) a notochord.
B) brains.
C)
Q5: Which of the following best describes which
Q6: What is the function of the vertebral
Q7: In vertebrates, the analogous structure to the
Q10: The discovery of a coelacanth in South
Q11: Which of the following is present in
Q12: What characteristic of hagfishes differentiates them from
Q13: Lancelets live in
A) sulfur springs.
B) the sea.
C)
Q13: Larval sea squirts
A) display all four chordate
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