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Unformatted text preview: Prokaryote : any cellular organism that has no nuclear membrane, no organelles in the cytoplasm except ribosomes, and has its genetic material in the form of single continuous strands forming coils or loops, characteristic of all organisms in the kingdom Monera, as the bacteria and blue-green algae. Examples : bacteria and archaea. Non-Insect Invertebrates : coral would be an example. Social behavior in non-insect invertebrates: live in colonies, polyps, social colonies of polyps. Cooperative non-insect invertebrates: Portuguese man of war, lots of polyps living together in colonies. Looks like one giant jellyfish, polyps helping each other float, attack, share food that they collect. They are very complicated organisms. Christmas Island crabs are not insects but aggregate for mating. Congregate on the same coast on Christmas Island. Deposit egg and sperm in the sea and they find each other. No one has to find a mate physically. Protects the crabs from predation because of groups. In groups, there is a lower amount of predation, and if a crab goes by itself, there is a higher chance of predation. Invertebrates are animals that dont have vertebrates. Includes coral and jellyfish, crabs, spiders, and snails. Examples : coral. Eukaryote : any organism having as its fundamental structural unit a cell type that contains specialized organelles in the cytoplasm, a membrane-bound nucleus enclosing genetic material organized into chromosomes, and an elaborate system of division by mitosis or meiosis, characteristic of all life forms except bacteria, blue-green algae, and other...
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This test prep was uploaded on 04/02/2008 for the course MCB 376 taught by Professor Staff during the Fall '07 term at University of Arizona- Tucson.
- Fall '07