Evolution

A group of birds become separated from its original population. Over a period of time, the new population of birds adapted to its new environment. If this new population returned to the environment it originated from, which of the following would most likely determine its ability to survive as a species?

• its beak size
  
• its ability to fly
  
• its common ancestry
• its ability to reproduce

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Variation happens as a result of the exchange of genetic information as it is passed from parent to offspring. Which of the following is true about inherited variation?

• Variation can influence separation.
• Variation can influence selective breeding.
• Variation can influence the resources that are available to an organism.
• Variation can influence whether organisms are more likely to survive to reproduce.

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Which of the following is an example of selective breeding?

• Populations of lizards with a certain trait become more numerous after a change in climate.
• Farmers allow only sheep that produce the best wool to breed.
• A population of bacteria develops resistance to an antibiotic.
• Female birds prefer to mate with colorful males rather than noncolorful males.

There are three species of birds on an island. These three species are shown below. Bird A has a heavy bill for eating big seeds. Bird B has a sharply pointed bill for eating insects. Bird C has a sharp bill for eating insects and small seeds. If the insect populations suddenly disappeared one season, which bird or birds would probably be the least affected that season?

• A
• B
• C
• A and B

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Where did Charles Darwin travel to?

• Australia
• Barbados
• Galapagos 
• Trinidad

Who created the theory of evolution?

• Charles Darwin
• Charles Derwin
• Charlie Darwin
• Chris Darwin

What does evolution mean?

• To change something
• To change and adapt over time
• To lose some original features
• To improve ssomething over time

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What animals did Charles Darwin study when at the Galapagos Islands?

• Giraffes
• Seagulls
• Seals
• Finches

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What is natural selection?

• Your natural fate is decided from birth
• Nature actively chooses who surivives
• Those best suited to demands of environment surivie
• The weakest of a species surivie

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Natural selection

• organisms better adapted to their environment tend to survive and produce more offspring

• process used by humans to develop new organisms with desirable characteristics

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