Evolution Review

Preserved remains of an organism that lived in the past…..

• fossil
• picture
• dinosaur
• animal

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NGSS.MS-LS4-1

A change in a trait or characteristic that increases an organism’s ability to survive and reproduce.

• extinction
• natural selection
• adaptation
• choice

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What are the variations of mice in this environment?

• white and grey
• short and tall
• red and green
• long fur and short fur

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What variation is best for survival?

• white
• grey
• red
• short

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WHY is this variation is best for survival?

• longer claws for fighting
• longer legs for running faster
• bigger ears for better hearing
• fur color that blends in to it's environment

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How will this mice population most likely change in the future?

• The white mice will go extinct.
• The grey mice will go extinct.
• All of the mice will grow longer fur.
• All of the mice will grow longer claws.

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Mutations are important because they bring about

• death of the organism in which they develop
• genetic variation needed for a population to evolve
• benefits for the individual, not for the population
• Hardey-Weinberg equilibrium within a population

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Natural selection results in change over time by acting on traits that are

• heritable
• new
• mutated 
• better than the best

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Darwin wrote that organisms with traits that are best suited to the environment will ________________

• increase in number
  
• become extinct
  

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Some organisms that share a common ancestor have features that have different functions, but similar structures.  These are known as

• vestigial structures
• analogous structures
• homologous structures
• fossil structures

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