The fins of lobe-finned fish are supported by extensions of the skeleton and are moved by muscles within the fin whereas the fins of ray-finned fish are supported by flexible,nonskeletal elements and are moved by muscles from within the fish's body.
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Q3: The human lineage began to diverge from
Q4: In lampreys,the notochord is surrounded by a
Q5: Metamorphosis is
A)changing of one body form to
Q6: Which fish were thought to be extinct,but
Q7: Which is an incorrect match of taxonomic
Q9: Marsupials are distinguished by
A)a marsupium.
B)mammary glands.
C)opposable thumbs.
D)nails.
Q10: Evolutionarily,the jaws of vertebrates developed from
A)the circular
Q11: A distinguishing feature of the Squamata is
Q12: Birds are different from all other living
Q13: Hagfish are classified as vertebrates,but they do
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