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HD Cute Animals for your Desktop

Penulis : Unknown on Wednesday, June 15, 2011 | 8:23 AM


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
























National Geographic Encyclopedia of Animals   Learning Resources Jumbo Zoo Animals  First Animal Encyclopedia (Dk First Reference Series)
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