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Practice problem

Anatomical and Physiological Evolution — Evidence & Types

By Sarah Morgan
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The image displays a phylogenetic tree of the Camel Snake, an ancient creature that was a snake with two bumps on its back. The original camel snake diverged into two species. The golden camel snake had a poisonous spine on its tail. The blue camel snake developed legs. The golden camel snake diverged into two species: the pink camel snake, which had fangs, and the orange camel snake, which had legs. The blue camel snake diverged into two species: the indigo camel snake, which had very long legs, and the lilac camel snake, which had twice as many legs.

Image by: Sarah Morgan for expii

You are studying the evolution of the several species of camel snake. You have a phylogenetic tree showing camel snake ancestry. Which of the two most recent camel snakes share an analagous trait?

Choose one answer

Type a concept, like “slope” or “photosynthesis”.

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