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 is oviparous?

• Platypus

• Flying fox

• Elephant

• Whale

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

Which one of the following statements is incorrect?

• In cockroaches and prawns excretion of waste material occurs through malpighian tubules.

• In ctenophors, locomotion is mediated by comb plates.

• In Fasciola flame cells take part in excretion

• Earthworms are hermaphrodites and yet cross-fertilization takes place among them.

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

• Pigmented skin

• Alimentary canal with some modification

• Vivipary

• Warm-blooded nature