BIOL 1005 Chapter Notes - Chapter 17: Continental Drift, Thumb, Cerebral Cortex
3 Oct 2015
School
Department
Course
Professor
Document Summary
Amphibian a member of the chordate clade amphibia, which includes the frogs, toads, and salamanders, as well as the limbless caecilians. Arthropod a member of the animal phylum arthropoda, which includes the insects, spiders, ticks, mites, scorpions, crustaceans, millipedes, and centipedes. Conifer a member of a group of nonflowering vascular plants whose members reproduce by means of seeds formed inside cones; retains its leaves throughout the year. Endosymbiont hypothesis the hypothesis that certain organelles, especially chloroplasts and mitochondria, arose as mutually beneficial associations between the ancestors of eukaryotic cells and captured bacteria that lived within the cytoplasm of the pre0eukaryotic cell. Eukaryote an organism whose cells are eukaryotic; plants, animals, fungi, and protists are eukaryotes. Exoskeleton a rigid external skeleton that supports the body, protects the internal organs, and has flexible joints that allow for movement. Hominin a human or prehistoric relative of humans; the oldest known hominin is. Sahelanthropus, whose fossils are more than 6 million years old.
