Multiple choice

Which of the following has an oil gland present at the base of the tail?

  1. Class Pisces

  2. Class Aves

  3. Class Amphibia

  4. Both 1 and 2

  5. None of these

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Aves or birds have an oil gland at the base of the tail.