WBCS.LIVE practice question

Which of the following statements most accurately describes the Cyclostomata group?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. They are characterised by having an elongated eel-like body, circular mouth, slimy skin and are scaleless.
  2. They are ectothermic animals having mucus glands in the skin, and a three-chambered heart.
  3. They are warm-blooded, oviparous, bipedal, feathered, winged and toothless vertebrates.
  4. Their skin is covered with scales/plates and their hearts have only two chambers.

Correct answer and explanation

Correct answer: They are characterised by having an elongated eel-like body, circular mouth, slimy skin and are scaleless.