Science Pre-AP
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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Evolution | the process in which population changes over time
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What are the types of evolution? | microevolution and macroevolution
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Microevolution | evolution or change on a small scale
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Macroevolution | evolution or change on a large scale
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Population Genetics | the science that studies the change in distribution of traits within a species population (A.K.A gene pool)
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Species | Organisms that are so genetically similar that they have the potential to breed and produce that are viable and fertile
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Viable | living
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Fertile | able to reproduce eventually themselves
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What four criteria is population defined by? | Same species of organism
Located in the same location
At the same time
And showing signs of reproduction (offspring is present within the group)
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Geographic Range | the geographical area within which a species can be found
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Organisms that are common may have... | several populations that cover a wide range
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What is one example of a range that is global? | humans
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Geographic Barriers | large mountains or bodies of water
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Do individuals evolve? | no; but populations do
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Can you change DNA? | no
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Mutations | random changes that occur in an organism’s DNA. Some help individuals survive in their environment and reproduce and some do not. Other mutations have no effect
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If a mutation (change) occurs in the DNA of sex cells (gametes) of the parent(s) then what happens? | changes can be inherited by the offspring
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Allele Frequency | how many alleles are present at that time within the population
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Fixed | there is no change in frequency; no evolution is present (a state of equilibrium)
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Evolving | frequency is changing; evolution is occurring (a state of change over time)
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There are always how many traits for an allele? | 2
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