Explanation

• Amphibians are animals that live both in water and on land.
• Most amphibians lay their eggs in water because their eggs do not have a protective shell.
• Examples of Amphibians: Frog, Toad, Salamander, Newt, Caecilian

Last verified on 07-03-2026

Explanation

Penguins are the birds which do not fly but swim to go from one place to another.

Penguins have flippers which help them swim underwater.

Penguin means پنکھ دار بحری پرندہ

Explanation

An invertebrate is an animal without a backbone.

Worms, like earthworms, are classified as invertebrates.

They lack a backbone and are found in various environments. 

Explanation

Female ostriches lay the largest eggs of any living bird.

These gigantic birds are the biggest birds on the planet.

Explanation

Triploblastic animals have three germ layers (ectoderm, mesoderm, endoderm).

Roundworms (Nematodes) are triploblastic.