Biology ch 15,16
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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| What is the name o f Dawins boat?? | HMS Beagle
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| What were two animals that Darwin found adapted to the enviroment?? | Turtles and Finches
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| What was so different about the finches? | Their Beaks
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| How many years did Hutton think the earth was? | thousands
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| What did Darwin notice about the finches and tortoises on the Galapagos Islands? | Each island had a slightly different version of the same species.
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| Darwin noticed that the differences in animals on the Galapagos Islands helped them to | survive
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| Which scientists suggested that the Earth is many millions of years old? | Hutton and Lyell
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| Of Lyell and Hutton, which one tried to explain how rock formations change over time? | Hutton
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| Which scientist proposed that animals can pass on adaptations to their offspring. | Lamarck
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| Lamarck said that an animal’s body can change due to its... | actions
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| An acquired characteristic is... | a trait an animal gained through actions in their lifetime
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| What was Darwin’s book called? | On the Origin of Species
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| Which scientist suggested that human population would grow so much there wouldn’t be enough food? | Malthus
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| Did Darwin publish his findings immediately, or after many years? | after many years
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| Who wrote an essay about evolution that motivated Darwin to go ahead and publish his book? | Alfred Russel Wallace
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| What is the ability of an organism to survive and reproduce where it lives? | fitness
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| When an animal has body parts that have no use for them anymore, those parts are called... | vestigial structures
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| When animals have body parts that are very similar to each other, those parts are called.... | homologous structures
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| An adaptation is an inherited characteristic that helps... | that animal survive
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| True or False: Adaptations are only physical. | False; they could also be a behavior
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| When fossils and living animals have very similar body parts, scientists assume that they have... | a common ancestor
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| What did Darwin believe was one of the biggests evidences of evolution? | the fossil record
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| The percentage of black cats in a cat population is an example of... | relative frequency of an allele
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| Two big sources of genetic variation are... | mutations
genetic shuffling during meiosis
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| What is a single-gene trait? | A trait that has one gene (two alleles) that controls it.
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| What is a trait called that is controlled by two or more genes? | polygenic traits
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| When does directional selection occur? | When individuals have more fitness on one side of the peak.
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| When does stabilizing selection occur? | When individuals have more fitness at the peak.
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| When does disruptive selection occur? | When individuals have more fitness on both sides of the peak, but not at the peak.
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| A random change in allele or trait frequency over time is called... | genetic drift
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| What are the five conditions required to maintain genetic equilibrium? | random mating
large population
no immigration or emmigration
no mutations
no natural selection
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| What is the term meaning the formation of a new species? | speciation
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| What is the definition of “species”? | A group of organisms that can breed and produce fertile offspring
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| Behavioral isolation, geographic isolation and temporal isolation can all lead to... | reproductive isolation...the inability of species to interbreed and produce offspring
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| Two birds having different types of songs to attract mates is a type of which isolation? | behavioral isolation
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| When two populations become separated by bodies of water or mountains, it is what type of isolation? | geographic isolation
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| If flowers produce pollen at different points of the Spring season, it is what type of isolation? | temporal isolation
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