A.A comparison of fish as a cold-blooded animal with warm-blooded animals.B.The difference between water animals and land animals.C.The importance of fish to human beings.D.How water has affected the development of fish.
A.A comparison of fish as a cold-blooded animal with warm-blooded animals.
B.The difference between water animals and land animals.
C.The importance of fish to human beings.
D.How water has affected the development of fish.