Question

Match column I,II and III

Column I	Column II	Column III
A - Fish	i) 3-chambered heart	i) Incomplete heart
B - Amphibia	ii)4-chambered heart	ii) single circulation
C- Birds	iii)2-chambered heart	iii) double circulation

• A. $A\to \left(iii\right),\left(ii\right)B\to \left(ii\right),\left(i\right)C\to \left(ii\right),\left(iii\right)$
• B. $A\to \left(i\right),\left(ii\right)B\to \left(iii\right),\left(ii\right)C\to \left(iii\right),\left(i\right)$
• C. $A\to \left(ii\right),\left(ii\right)B\to \left(i\right),\left(ii\right)C\to \left(ii\right),\left(i\right)$
• D. $A\to \left(ii\right),\left(iii\right)B\to \left(i\right),\left(i\right)C\to \left(iii\right),\left(iii\right)$

Answer 1

The correct option is A $A\to \left(iii\right),\left(ii\right)B\to \left(ii\right),\left(i\right)C\to \left(ii\right),\left(iii\right)$

Vertebrate hearts can be categorized by the number of chambers they have: Two chambers: one atrium and one ventricle (fish) and have single circulation. Three chambers: two atria and one ventricle (amphibian) and have incomplete heart. Four chambers: two atria and two ventricles (birds) and have double circulation.

So, the correct answer is'A→(iii),(ii)B→(ii),(i)C→(ii),(iii)'