1. Proboscis
2. Trunk
3. Tail
4. Collar
Proboscis
1. Glomerulus
2. Pallium
3. Stomochord
4. Protochord
Stomochord
1. Lateral
2. Ventral
3. Ventrolateral
4. Dorsal
Dorsal
1. Amphibians, reptiles, birds
2. Crocodiles, birds, mammals
3. Crocodiles, lizards, turtles
4. Lizards, mammals, birds
Crocodiles, birds, mammals
1. Snake and frog
2. Chameleon and turtle
3. Frog and pigeon
4. Crocodile and tiger
Chameleon and turtle
1. Pigmented skin
2. Alimentary canal with some modification
3. Viviparity
4. Warm blooded nature
Warm blooded nature
1. Cuttlefish, jellyfish, silverfish, dogfish, starfish
2. Bat, pigeon, butterfly
3. Monkey, chimpanzee, man
4. Silkworm, tapeworm, earthworm
Monkey, chimpanzee, man
1. Platypus
2. Flying fox
3. Elephant
4. Whale
Platypus
1. Cobra
2. Viper
3. Python
4. Krait
Python
1. Insect
2. Myripoda
3. Crustacean
4. Arachnida and crustacean
Insect