BioPrelim2 Study Guide - Emily Weinstein Biology 109 Prelim...

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Emily Weinstein Biology 109 Prelim 2: Study Guide Answers 1. Chapter essays: what adaptive functions may foot color serve in Blue footed boobies (avoiding predators, species recognition) ? How did the mosquitoes culex molesutus and culex pipiens evolve (allopatric speciation and different climates) ? 2. Know relationships of taxonomic groups and which creatures belong to them: Deuterostome has an anus that evolved first Echinodermata include sea stars and sea urchins Chodrichthyes are sharks and have a cartiledge skeleton osteichthyes are bony fishes including salmon, bass, eels amphibia are a major group of chordates. amniota are the other major group of chordates and include mammalia and reptilia monotremata are mammals that lay amniotic eggs and an example is a platypus aves is a category of reptilia that includes birds crocodylia is a category of reptilia and includes crocodiles tetrapoda refers to animals with four limbs and is a grouping including all amphibians and amniotes (reptiles and mammals) canidae is a category of carnivora referring to dogs carnivora is a category of placentals that includes dogs, cats, bears, and weasels placental mammals nourish their children in an amniotic sac and are sometimes called eutherians. Placental mammals include the groups rodentia (rats and squirrels), chiroptera (bats), insectivora (shrews, moles, and hedgehogs), carnivora (dogs, cats, bears, and weasels), primates (lemurs, monkeys, apes, humans), artiodactyla (cows and deer), cetacea (dolphins, whales, and porpoises), and perisodactyla (horses, rhinos and tapirs) marsupials are a group of mammals that have a relatively short gestation and their offspring complete development attached to them; for example in a pouch. Kangaroos and opossums are two examples chordata refers to all of the chordates which includes all of the deuterostomes except echinodermata vertebrata is a group of chordates, the majority of the chordates, that have a backbone lamprey is a jawless vertebrate jawed vertebrate is a vertebrate that has a hinged jaw evolved from skeletal supports of gill slits. They are commonly called fish. ray-fin fishes are osteichthyes, bony fish lobe-fins are the closest relatives of tetrapoda an are coelacanths Neanderthal were an evolutionarily recent human relative who lived in Europe until about 30,000 years ago. Analysis of DNA revealed that Neanderthals were a distinct species from the modern human Lemurs are the oldest primates , tarsiers are primates with big eyes. They are the second generation in primate evolution New world monkeys have flat noses with side pointing nostrils, long prehensile (grasping) tails, are almost all arboreal, have monogamous pair bonds, and have parental care of young whereas old world monkeys have downward facing noses anthropoids include old world monkeys, new world monkeys, apes and humans hominoid refers to apes, orangutans, chimpanzees (our closest relatives) , gorillas , gibbons, and bonobos 3. What are the closest living relatives of the taxonomic group that includes reptiles, monotremes,
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This note was uploaded on 10/07/2009 for the course BIO G 109 at Cornell University (Engineering School).

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BioPrelim2 Study Guide - Emily Weinstein Biology 109 Prelim...

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