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25
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Greater _____________________________ signifies a larger variety of alleles, and therefore greater survivability of a species over time.
GENETIC VARIATION
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25
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_____________________________ occurs when the environment changes and the adaptations of a species are no longer sufficient for its survival
EXTINCTION
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25
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What are some causes for extinction?
Low mutation rates, environmental change, climate change, food sacristy
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25
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_____________________________ is an organism from which others have descended.
ANCESTOR
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___________________ increase an organismâs chance of survival in their environment.
ADAPTATION
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25
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Who started the theory of natural selection?
Charles Darwin
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25
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_____________________________ is the process of how organisms acquire adaptations over time.
EVOLUTION
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Animals with backbones
VERTEBRATES
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_____________________________ is used by biologists to illustrate evolutionary relationships between organisms and their ancestors.
CLADOGRAM
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25
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_____________________________ share common evolutionary origins, but can be functionally unalike.
HOMOLOGOUS STRUCTURE
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25
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Do changes in the environment CAUSE mutations?
no
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_____________________________ is a process by which organisms with favorable traits survive and reproduce more successfully.
NATURAL SELECTION
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25
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As environmental conditions change over time, which population will have a better chance of survival?
A population with a high level of variation
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×
boom
Lose 50 points!
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×
gold
Win 50 points!
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×
shark
Other team loses 25 points!
Okay!
×
lifesaver
Give 20 points!
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monster
Reset all scores!
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gift
Win 20 points!
Okay!
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shark
Other team loses 15 points!
Okay!
×
banana
Go to last place!
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lifesaver
Give 20 points!
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rocket
Go to first place!
Okay!
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rocket
Go to first place!
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banana
Go to last place!
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×
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