Question

Study the statements about chordates and identify correct ones :
(a) Columella auris present in the middle year of amphibians is modified hyomandibula of fishes.
(b) Reptiles lay cleidoic eggs.
(c) Sphenodon is connecting link between amphibians and reptiles.
(d) Panthera tigris is an extinct animal of India.

• A. (a), (c)
• B. (b), (d)
• C. (a), (b) and (c)
• D. (b), (c) aand (d)

Answer 1

The correct option is C (a), (b) and (c)

• Columella auris is the modified hyomandibula commonly found in fishes.
  
• Cleidoic egg is also known as amniotic egg and is a characteristic of reptiles and birds.
  
• Sphenodon is a connecting link between amphibians and reptiles.
  
• Panthera Tigris is an endangered species in India. It hasn't gone extinct.
  

So the correct answer is '(a), (b) and (c).'