Question

Choose the correct statement(s) based on the table given below.
$\begin{array}{cccc}& \text{Class P}& & \text{Class Q}\\ \text{1}& \text{They give birth to young ones}& \text{1}& \text{Lay eggs}\\ \text{2}& \text{They possess fur or hair}& \text{2}& \text{Forelimbs are modified into wings}\end{array}$

• A. Both class P and Q have warm blooded vertebrates.
• B. Bats come under class Q, while Whales come under class P.
• C. White stork are an exception of class P as they lay eggs.
• D. Rats belong to class P as they have lots of hair on their body.

Answer 1

Answer: (A), (D)

Rats belong to class P as they have lots of hair on their body.

• Class P is mammalia and class Q is Aves.
• Aves lays eggs. Their hindlimbs are modified into legs and forelimbs into wings for flight. Their body is covered with feathers. All birds fall under this class. E.g., White stork, ostrich, duck, sparrow etc.
• Mammals give birth to their young ones (except platypus and echidna which lay eggs). The skin of the mammal is covered with hair or fur and have oil and sweat glands. E.g., Bat, rat, humans, whale etc.