Which of the following series of events correctly describes the evolutionary history of the vertebrates, from earliest to latest in time?

a. four limbs ? hair ? lungs ? jaws
b. jaws ? lungs ? four limbs ? hair
c. hair ? four limbs ? lungs ? jaws
d. lungs ? jaws ? four limbs ? hair
e. four limbs ? lungs ? jaws ? hair


Ans: b. jaws ? lungs ? four limbs ? hair

Biology & Microbiology

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Bacteria that contain complex internal membrane systems are more likely to divide by budding than by binary fission

Indicate whether the statement is true or false.

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How does temperature-driven vertical turnover occur, and what is its importance?

What will be an ideal response?

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The phyla Bryozoa and Brachiopoda have which feature in common?

A. a radula B. nephridia C. setae D. a muscular foot E. a lophophore

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