BIOL 226 Lecture Notes - Lecture 34: Eukaryote, Amniote, Animal
15 Apr 2018
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Definition: multicellular, ingestive heterotroph, eukaryote, diploid that develops from embryonic layers. Blastula: hallow ball of cells that surrounds cavity called blastocell and marks the end of cleavage stage / Major cfeatures of animals body plans: symmetry, organisation of animals tissues, body cavities, prototsome and deuterstome. Bilateral symmetry is least associated with the sessile condition (1 point) Chapter 34 the origin and evolution of vertebrates. Vertebrates are only one type of animals, one of the most successful groups of animals. Origin of name: the backbone or series of bones that make up the vertebrate column. Largest animal to have lived on the earth: blue whale. Chordates are bilaterian that belong to the clades that belong to the clade of animals known as. All vertebrates are chordates, but not all chordates are vertebrates. Some species have some of these traits only during embryonic development. Closest living to vertebrates= lancelets (named for their bladelike shape)
