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Type: Multiple-Choice
Category: Zoology
Level: College
Created: 2 weeks ago

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College Zoology

Several lineages of fishes, including lamnid sharks, billfishes and tunas, have evolved an ability known as regional endothermy. These fishes all share the following eco-morphological characteristics, EXCEPT for what?
  1. They are large and active with high energy demands.
  2. They undertake long-distance migrations.
  3. They encounter a range of water temperatures within the vertical water column.
  4. They have a second set of accessory gills that increases oxygen extraction from water.
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