Completar frases Vertebrate and InvertebratesVersión en línea You have to fill in blanks with a type of vertebrate or invertebrates. por Javier Blanco 1 are animals with a backbone . There are five groups of vertebrates : amphibians , birds , , mammals and . have moist skin and lay eggs in water . have feathers and lay eggs . Fish have wet and lay in water have hair and produce milk Reptiles have dry scales and lay .
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