Multiple choice

In contrast, which of the following describe features of fish?

  1. Gills absent and most are cold-blooded

  2. Gills present and most are cold-blooded

  3. Gills present and most are warm-blooded

  4. Gills absent and most are warm-blooded
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Fish are aquatic vertebrates that use gills to extract oxygen from water and are typically cold-blooded.

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