Search Results for: Reptiles live
blastula (hollow ball) stage, and integrate muscle tissue, nervous tissue, and collagen into their body. their body plan becomes fixed as they develop, usually early on in their development as embryos , although some undergo a process of metamorphosis later on. animals include mammals , birds , reptiles
lampshells) phylum phoronida (horseshoe worms) phylum chaetognatha (arrow worms) phylum hemichordata (acorn worms) phylum echinodermata (starfish, sea cucumbers, sea urchins) phylum urochordata (tunicates, sea squirts) phylum cephalochordata (amphioxus, lancelets) phylum craniata (fishes, amphibians, reptiles...
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