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30 Cards in this Set
- Front
- Back
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What is a primate?
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they are adapted to trees (fundamentally arboreal)
they eat a variety of foods they are a high parental investment |
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What are the five major adaptations that make a good primate?
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1.generalized skeletal structure
2. enhanced touch 3. enhanced vision 4. reduced smell 5. dietary versatility |
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What explains the immense diversity of primates?
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diff classification systems
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Ordered cranially --> caudally, what are the five types of vertebrae in primates?
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cervical, thoracic, lumbar, sacral and coccygeal
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What is a dental formula and why is it useful for phylogenetic inference?
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#I/#C/#PM/#M
because it helps u figure out the formula for each type of primate |
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Distinguish prosimians (Prosimii) from anthropoids (Anthropoidea).
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prosimii is the most primitive primates.
anthropoidea is are the higher primates |
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Distinguish platyrrhines from catarrhines
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they have diff kinds of noses and diff sets of teeths
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What makes a good brachiator?
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being able to use your upper limbs to move from tree limb to tree limb
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Why might a sagittal crest be considered functional?
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.bc chewing
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What is sexual dimorphism?
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phenotypic difference between men and women of the same species
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suite of physical traits that enable an organism to live in trees
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- arboreal adaptation
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the numerical description of a species teeth, listing the number, in one quadrant of the jaws, of incisors, canines, premolars and molars
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- dental formula
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characteristics present in only one or a few species of a group
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- derived characteristics
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space or gap between two teeth.
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- diastema
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a diet's flexibility in adapting to a given environment
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- dietary plasticity
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of or during the day.
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- diurnal
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humans and human ancestors in a more recent evolutionary taxonomy; based on genetics
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- hominin
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is a structure of the vertebrate forebrain involved in olfaction, the perception of odors
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- olfactory bulb
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the evolutionary relationships of a group of organisms
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- phylogeny
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fistlike grip in which the figners and thumbs wrap around an object in opp directions
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- power grip
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a precise grip in which the tips of the fingers and thumbs come together enabling fine manipulation
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- precision grip
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tail that acts as a kind of hand for support in trees, common in new world monkeys
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- prehensile tail
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characteristics present in multiple species of a group
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- primitive characteristics
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the naked surface around the nostrils, typically wet in mammals
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- rhinarium
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hominoids' pattern of lower molar cusps
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- Y-5 (molar)
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seperation of bones in articular joints associated with mobility: clavicle, radius and ulna: wrist; opposable thumb; opposable big toe in many primates
five functionally distinct vertebrae types - cervical, thoracic, lumbar, sacral and coccygeal. |
versatile skeletal structure
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dermal ridges at ends of fingers and toes; nails instead of claws
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enhanced sense of touch
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convergence of eyes; color vision
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enhanced sense of vision
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2/1/2/3
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old world monkeys
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2/1/3/3
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new world monkeys
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