ANSWER

Answer Exercise 1:

Animal	Features
Butterfly	Wings, Body, Legs, Eyes
Fish	Fin, Tail, Scales, Mouth
Goat	Horns, Hair, Legs, Tail
Parrot	Beak, Wings, Feather, Eyes

Answer Exercise 2:

Group	External Features	Animals with the same features
1	Fur	Sheep, Tiger, Bear, Rabbit
2	Horns	Goat, Cow, Deer, Bull
3	Scales	Snake, Lizard, Crocodile, Armadillo
4	Beak	Bird, Chicken, Ostrich, Penguin
5	Wings	Butterfly, Grasshopper, Bat, Bee