Animal mesoderm forms by enterocoelic pouching, through invagination of the endoderm. The main deuterostome phyla are the Echinodermata and the Chordata. Echinoderms are exclusively marine and include starfish, sea urchins, and sea cucumbers. The chordates are dominated by the vertebrates (animals with backbones), which consist of fishes, amphibians, reptiles, birds, and mammals. The deuterostomes also include the Hemichordata (acorn worms). The Ecdysozoa are protostomes, named after their shared trait of ecdysis, growth by moulting. They include the largest animal phylum, the Arthropoda, which contains insects, spiders, crabs, and their kin. All of these have a body divided into repeating segments, typically
Starfish Country Home School Foundation Starfish Country Home School Foundation The Starfish Country Home School Foundation was registered as a non-profit organization in Thailand in March 2005. The foundation’s principal offices are located outside the Mae Taeng District, about 45 km (27 miles) north of Chiang Mai Province in northern Thailand. The use of Starfish in the name of the Starfish Country Home School Foundation originates from the famous parable of Loren Eisley, The Star Thrower. That story reflects the philosophy of the Starfish Country Home School Foundation of trying to give significant assistance to a relatively small number of beneficiaries so as to have