Birds and mammals share one of the following characteristics as a common feature.

• Pigmented skin

• Alimentary canal with some modification

• Vivipary

• Warm-blooded nature

Which one of the following sets of animals share a four chambered heart?

• Amphibian, Reptiles, Birds

• Crocodiles, Birds, Mammals

• Crocodiles, Lizards, Turtles

• Lizards, Mammals, Birds

Which of the following pairs of animals has non-glandular skin

• Snake and Frog

• Chameleon and Turtle

• Frog and Pigeon

• Crocodile and Tiger

Which one of the following statements is incorrect?

• Mesoglea is present in between ectoderm and endoderm in Obelia.

• Radial symmetry is found in Asterias

• Fasciola is a pseudocoelomate animal
• Taenia is a triploblastic animal

Which one of the following sets of animals belongs to a single taxonomic group?

• Cuttlefish, Jellyfish, Silverfish, Dogfish, Starfish

• Bat, Pigeon, Butterfly

• Monkey, Chimpanzee, Man

• Silkworm, Tapeworm, Earthworm