Page 37 - Science Tour 3 (Workbook)
P. 37
Put ( ) or ( ):
1. Vertebrates have a backbone. ( )
2. Invertebrates don’t have a backbone. ( )
3. Fish and birds are invertebrates. ( )
4. Worms are vertebrates. ( )
5. Mammals lay eggs. ( )
6. Frogs and salamanders are amphibians. ( )
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