True: Mammals don't lay eggs. , Invertebrates are animals without a backbone. , All animals can move and breath. , Scales keep fish safe from some big and dangerous fish. , Fish lay eggs in the water and their eggs are soft. , Amphibians live on land and in water. , Mammals' babies drink milk from their mums. , False: Butterflies belong to mammals. , All animals are the same. , All birds have gills. , Gills help birds to fly. , Birds lay eggs only on the top of the mountain. , All mammals live only on land. , People don't belong to mammals. ,

All groups of animals

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恢復自動保存: ?