Animal+-+N

​ Animal - Nitrogen

Animals are multi-celled. Animals can not make their own food. Animals can move from place to place during some part of their lives. Vertebrates have backbones like Invertebrates don't have backbones like
 * Fish
 * Birds
 * Reptiles
 * Amphibians
 * Mammals
 * Poriferal
 * Cnidaria
 * Annelida
 * Mollussa
 * Arthropoda
 * Echinodermata