BIO2231 Chapter Notes -Animal, Prokaryote, Organism
Document Summary
Cladistic a system of arranging taxa by analysis of evolutionarily derived characteristics so that the arrangement reflects phylogenetic relationships. Prokaryote not having a membrane-bound nucleus or nuclei. Eukaryote organisms whose cells characteristically contain a membrane-bound nucleus or nuclei. Eumetazoa any multicellular animal with distinct germ layers that form true tissues; animals at or beyond the cellular grade of organization. Parazoa multicellular organisms having less-specialised cells than in the metazoa. Heterotrophic an organism that must obtain both organic and inorganic raw materials from the environment in order to live; includes most animals, fungi, and those plants and microorganisms that do not have photosynthesis. Cellular level of organization specialised functional organelles within cells. Individual viable cells co-operate, differentiated cells for particular functions. Choanocytes one of the flagellated collar cells that line cavities and canals of sponges. Asconoid sponge simplest form of sponges with canals leading directly from the outside to the interior. Synocoid sponge look somewhat like larger asconoids.
