Characteristics Animal

Characteristics

Animals have several characteristics that set them apart from other living things. Animals are eukaryotic and mostly multicellular,[4] which separates them from bacteria and most protists. They are heterotrophic,[5] generally digesting food in an internal chamber, which separates them from plants and algae.[6] They are also distinguished from plants, algae, and fungi by lacking rigid cell walls.[7] All animals are motile,[8] if only at certain life stages. In most animals, embryos pass through a blastula stage, which is a characteristic exclusive to animals.





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