ransom 6&7th ch 8/9
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Scientists can determine the age of a fossil by looking at its __________ | atoms
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| Scientists think that there was a big landmass called ____________ | Pangaea
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| How can scientists tell how old a fossil is? | absolute dating
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| Who studies the past? | paleontologists
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| When a plant or animal dies out completely and does not reappear, it is... | extinct
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| What are the three reasons scientists believe in Pangaea? | continents; fossils; glaciers; describe these three things
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| The Mesozoic era was the | 3rd era
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| We have the most fossils from what era? | Cenozoic
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| What damages DNA? | UV radiation
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| What were the first cells called? | anaerobic
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| How did hominids start to look like humans and get human features? | We evolved over time. From mice first, then lemurs, Lucy, australopithecines, Homo Habilis, Homo erectus, Neanderthals, Cro-Magnons and finally people.
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| What human like characteristics of humans do Neanderthals carry? | wore clothes, made fires to keep warm, buried their dead
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| Lucy's upright posture evolved before her _________ | enlarged brains
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| Hominids are humans' | ancestors
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| Bipedal means to | walk on 2 legs
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| Cro-Magons were like humans but with | bigger heads, heavier, stronger bones, smaller teeth or bigger brain
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| Why do we classify? | We classify to specify exactly what organisms are.
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| Why do we use taxonomy? | to place organisms in their classification
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| A brown bear is more closely related to a platypus or a lion? | lion
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| The first classification is kingdom or family? | kingdom
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| How many kingdoms of bacteria are there? | two
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| What kingdom has both plant and animal like characteristics? | protista
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| List the kingdoms | plantae, protista, fungi, animalia, archaebacteria, eubacteris
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| The prefix archar comes from the Greek meaning | ancient
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| A giant sequoia can grow how tall? | 91.5 meters
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