Which one of the following sets of animals share a four chambered heart?
1. Amphibian, Reptiles, Birds
2. Crocodiles, Birds, Mammals
3. Crocodiles, Lizards, Turtles
4. Lizards, Mammals, Birds
Birds and mammals share one of the following characteristics as a common feature.
1. Pigmented skin
2. Pneumatic bones
3. Viviparity
4. Warm blooded body
Which one of the following sets of animals belong to a single taxonomic group?
1. Cuttlefish, jellyfish, silverfish, dogfish, starfish
2. bat, pigeon, butterfly
3. Monkey, chimpanzee, man
4. Silkworm, tapeworm, earthworm
Which one of the following is oviparous?
1. Platypus
2. Flying fox (bat)
3. Elephant
4. Whale