
A)Lizard蜥蜴, Turtle
X = Animals reproduce by giving birth ;是胎生动物
Y = Animals reproduce by laying egg ;是卵生动物
Q)Which of the following have been correctly classified into group X and group Y?
A)Lizard蜥蜴, Turtle
B)Horse, cat
C)Whale, Crocodile
D)Snake, Giraffe