The great size and mobility of the vertebrates are likely the result of

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The great size and mobility of the vertebrates are likely the result of

The great size and mobility of the vertebrates are likely the result of
A) four-chambered hearts.
B) lungs used for respiration.
C) lightweight endoskeletons.
D) uterine development of offspring.
E) increased brain size and complexity.

Textbook

Biology: Life on Earth

Edition: 10^th

Authors: Audesirk, Byers

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