Endoskeleton three phyla and one subclass of animals, endoskeletons of various complexity are found: Chordata, Echinodermata, Porifera, and Coleoidea. An endoskeleton may function purely for support (as in the case of sponges), but often serves as an attachment site for muscle and a mechanism for transmitting muscular forces. A true endoskeleton is derived from mesodermal tissue. Such a skeleton is present in echinoderms and chordates. The poriferan 'skeleton' consists of microscopic calcareous or siliceous spicules or a spongin network. The Coleoidae do not have a true endoskeleton in the evolutionary sense; there, a mollusk exoskeleton evolved into several sorts of internal
Phyla nodiflora Phyla nodiflora Phyla nodiflora, the frog fruit, sawtooth fogfruit, or turkey tangle, is an ornamental plant in the Verbenaceae family, and is native to South America and the United States. It can be found in tropical areas around the globe, a naturalized species in many places. This plant is cited in "Flora Brasiliensis" by Carl Friedrich Philipp von Martius. It is often grown ornamentally as a ground cover plant, and is often present in yards or disturbed areas as a lawn weed. The inflorescence consists of a purple centre encircled by small white-to-pink flowers. The flower takes on a match-like