Mention any one major similarity and one major difference in the following pairs of animals:

(a) Insects and Birds

(b) Whales and Fishes

(c) Snakes and Earthworms

(d) Bat and Pigeon

(e) Cuttlefish and Dogfish

(f) Wall lizard and Frog

(a) Insects and Birds

Similarity — Both Insects and Birds have wings.

Difference — Insects are invertebrates whereas birds as vertebrates.

(b) Whales and Fishes

Similarity — Both Whales and Fishes are aquatic.

Difference — Whales breathe through lungs whereas fishes breathe through gills.

(c) Snakes and Earthworms

Similarity — Both Snakes and Earthworms do not have any limbs.

Difference — Earthworms are invertebrates whereas snakes are vertebrates.

(d) Bat and Pigeon

Similarity — Both Bat and Pigeon breathe through lungs.

Difference — Bats have external ears whereas pigeons have internal ears.

(e) Cuttlefish and Dogfish

Similarity — Both Cuttlefish and Dogfish are marine animals.

Difference — Dogfish is a vertebrate whereas cuttlefish is an invertebrate.

(f) Wall lizard and Frog

Similarity — Both Wall lizard and Frog are cold-blooded.

Difference — Wall lizards live on land whereas frogs can live both on land and water.