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Jacey Nguyen
on Dec 07, 2024

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You have a taken a summer job working as a field technician for a biological exploration in the Arctic. During the course of the summer, the expedition leaders become very excited about the discovery of a fish skeleton that shows bones extending out from the vertebral column that appear as small appendages. From your biology coursework, you realize that this fish would be classified as a ____.

A) hagfish
B) stingray
C) shark
D) ray-finned fish
E) lobe-finned fish

Lobe-finned Fish

A class of fish known scientifically as Sarcopterygii, distinguished by their fleshy, lobed, paired fins, which are precursors to the limbs of land vertebrates.

Ray-finned Fish

A diverse group of fish characterized by their fins being supported by bony spines or rays, which is distinct from the fleshy fins of lobe-finned fish.

Vertebral Column

Backbone.

  • Understand the changes that facilitated vertebrates' survival on land.
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Zaria SprattlinDec 12, 2024
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