Smileymarie607 Smileymarie607
  • 12-05-2018
  • Biology
contestada

A swim bladder is a gas-filled sac that helps fish maintain buoyancy. the evolution of the swim bladder from lungs of an ancestral fish is an example of __________.

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princessalane
princessalane princessalane
  • 13-05-2018
exaptation - when a limb evolves and takes on a new function
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