Frogs have the ability to climb because they possess:

Mention the relation of frogs with human life.

Male frogs can be distinguished from female frogs due to the presence of:
$A$. Bulging eyes
$B$. Vocal sacs
$C$. Webbed digits in feet
$D$. Copulatory pad on first digit of fore limbs
$E$. Olive green-coloured skin with dark irregular spots
Choose the correct answer from the options given below:

Frog can protect itself from enemies by?

In water, frogs respire using $ . . . . . . $.

Give the differences between a male frog and a female frog.