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Have a Backbone
Bilateral Symmetry
Basic Skeletal pattern |
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| What you get on one side of a vertebrate you get on the other. Right side should mirror the left. Different from other organisms like sponges and sea urchins, for example. |
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| Monotreme, Marsupial, Placental |
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| (Duck-bill platypus, Echidna). Distinctive features of modern mammals are result of the long period of evolution. Mammals most often identified to animals that give birth to live young. Monotreme mammals are an exception to this. |
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| (humans). Placenta allows the blood system and fetus to be in very intimate contact and that means that nutrients can be passed more efficiently to fetus and also remove waist better. Placenta, though, has its costs: number of offspring a placental mother can have. |
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Definition
r/K Selection
r Selection involves the ability to reproduce quickly in unstable, unpredictable env.
K Selection involves the ability to produce successful, competitive offspring in stable, predictable environments. |
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| Heterotherms vs. homeotherms (chameleon vs. opossum) |
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| Homodontic (each tooth looks the same, one after another) vs. heterodontic (each tooth looks different and plays different role in mastication). |
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| Molars, Premolars, Canine, Incisors |
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| A tool used by physical anthropologists to describe and define groups of primates, is based ont he types of teeth a particular species possesses |
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| The lower, or mandibular, anterior teeth of prosimians are specialized into what is called the dental comb |
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Definition
| Gaps between teeth to receive the projecting canine of the opposite jaw, especially in those animals with very large canines, such as baboons and gorillas |
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| Sectorial lower first premolar |
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Definition
| A Single-cusped premolar that forms a cutting, slicing complex with the cuffing edge of the upper canine |
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Definition
Tribosphenic Molars
Bilophodont Molars
Y-5 Molars |
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| The study of our closest living relatives, the primates, for the purpose of understanding aspects of our own behavior |
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| All monkeys, apes, and humans |
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