Multiple choice

What is common among snakes, turtles and lizards?

(1) Presence of scales (2) Presence of lungs (3) Presence of tough covering over the egg (4) Presence of a notochord

  1. (1) and (2)

  2. (1) and (3)

  3. (1), (3) and (4)

  4. (1), (2), (3) and (4)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Snakes, lizards and turtles belong to class Reptilia. Animals of this class are cold-blooded, bear scales and breathe through lungs. Most of them have a three-chambered heart except crocodiles, which have four-chambered heart. They lay eggs with tough coverings. Notochord (chord – string) is a long flexible rod that provides support to the body. Animals with notochord are called chordates and without notochord are called non-chordates. Reptiles are chordates with a true vertebral column and internal skeleton. 

Keep practicing — related questions