Question

Match the contents of column I, II and III.
$\begin{array}{ccc}\text{Column I}& \text{Column II}& \text{Column III}\\ \text{1. Fish}& \text{i) Spiracles}& \text{a) Lives on both land and water}\\ \text{2. Frog}& \text{ii) Gills}& \text{b) Lives on land}\\ \text{3. Cockroach}& \text{iii) Lungs and skin}& \text{c) Lives in water}\end{array}$

• A. 1-i-a, 2-ii-b, 3-iii-c
• B. 1-i-c, 2-ii-b, 3-iii-a
• C. 1-i-c, 2-ii-a, 3-iii-b
• D. 1-ii-c, 2-iii-a, 3-i-b

Answer 1

The correct option is D 1-ii-c, 2-iii-a, 3-i-b

$\bullet$ Different organisms have different respiratory organ depending upon their habitat and complexity of body organization.
$\bullet$ Fishes live in the aquatic habitat, and they have gills which are adopted for gaseous exchange in water.
$\bullet$ Frogs are called amphibians, they live on the land as well as water. They use their lungs on land and moist skin in water for gaseous exchange.
$\bullet$ Insects like cockroaches live on land. They have small openings on the sides of their body known as spiracles. The oxygen rich air rushes through the spiracles into the tracheal tubes and diffuses into the body tissues.