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Unit 5 Introduction
Classification Characteristic Vocabulary
Term | Definition |
---|---|
prokaryote | A unicellular organism that lacks a nucleus and membrane bound organelles |
eukaryote | A cell that contains a nucleus and membrane bound organelles |
vertebrate | an animal with a backbone |
invertebrate | an animal that does not have a backbone |
sexual reproduction | 2 parents; genetically different offspring |
asexual reproduction | 1 parent; genetically identical offspring |
bilateral symmetry | Body plan in which only a single, imaginary line can divide the body into two equal halves. |
radial symmetry | body plan in which body parts repeat around the center of the body |
asymmetry | lack of symmetry |
heterotroph | An organism that cannot make its own food. |
autotroph | An organism that makes its own food |
sessile | Describes an organism that remains attached to a surface for its entire life and does not move |