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10 Cards in this Set
- Front
- Back
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What are the 6 Trends in the Evolution of Vertebrates?
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1. Nerve cord expaanded into brain
2. Shift from notochord to vertebral column 3. Evolution of Jaws 4. Paired fins evolved 5. Lungs from the gut 6. Legs from fins |
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What are the 5 things used to classify mammals?
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1. hair
2. Mammary glands 3. Distincitive teeth 4. high developed brain 5. Extended care for the young |
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What are the6 things used to classify primates?
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Indv. mobility of fingers
2. Collar bone (clavicle) 3. Good vision (biocular) 4. Complex brain, complex behavior 5. Intensive parental care |
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How long ago did anthropoids(monkey and apes) evolve?
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60-40 mya
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What is hominoids?
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Humans and other apes
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What 4 things classify Hominoids?
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1. Lack tail
2. Larger brains relative to body size 3. high degree of social organization 4. Humans share 99$ of their DNA with chimps |
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What ar ethe trends in lineage leading to humans?5 things
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1. less reliance on smell, more on vision
2. Skeletal changes to allow bipedalism 3. Modifications on hand allow fine movements 4. Bow shapes jaw and smaller teech 5. longer life span |
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Define Homo Habilis
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1.9-1.6 million years ago- the first human
Lived in words of eatern and southern africa Marks evolution of larger brains and less differences between sexes |
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Whats the name of the early humans that lived in eurpose and and eat?
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Neanderthals
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Homo sapiens compared to homo erectus and neanderthals
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1. more slender
2. smaller teeth and jaw 3. lack head brow ridges 4. larger-volume brain case |
