The first description of the cleavage program of the palaeonemertean Carinoma tremaphoros (a member of a basal clade of the Nemertea) is illustrated by confocal microscopy and microinjection and compared to development of more derived nemerteans and other eutrochozoans (Annelida, Mollusca, Sipunculida and Echiurida). Lineage tracers were injected into individual blastomeres of C. tremaphoros at...

Nemerteans have been alleged to belong to a protostome clade called the Trochozoa that includes mollusks, annelids, sipunculids, echiurids, and kamptozoans and is characterized by, among other things, the trochophore larva. The trochophore possesses a prototroch, a preoral belt of specialized ciliary cells, derived from the trochoblast cells. Nemertea is the only trochozoan phylum for which pre...

The various clades of Lophotrochozoa possess highly disparate adult morphologies. Most of them, including Nemertea (ribbon worms), are postulated to develop via a pelagic larva of the trochophora type, which is regarded as plesiomorphic in Lophotrochozoa. With respect to the nervous system, the trochophora larva displays a set of stereotypic features, including an apical organ and trochal neuri...

Tumbuhan berpotensi invasif merupakan tumbuhan asing yang berkembang dan menyebar di luar habitat alaminya. ini didatangkan dari wilayah tumbuhnya secara alami mampu mengintroduksi pada baru introduksi menjadi ancaman kawasan ekosistem tersebut. Tujuan penelitian adalah untuk mengetahui spesies terdapat Kawasan Ekowisata Lawe Gurah Taman Nasional Gunung Leuser (TNGL) Kabupaten Aceh Tenggara. Me...