Darwin's Observations

What islands did Darwin travel to when he made his observations?

• Beagle Islands

• Galapagos Islands

• Hawaiian Islands

• British Islands

What kind of birds did Darwin study?

• Finches

• Eagles

• Penguins

• Pigeons

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What observations did Darwin make about the finches he looked at?

• The birds on the different islands were all the same

• The birds on the different islands were slightly different

• The birds resembled a bird on the main island

• The birds resembled birds from millions of years ago

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The different sizes and shapes of the birds, beaks, and claws allowed finches to do what?

• Eat different types of food from one another

• Survive in different habitats

• Survive gladiator battles

• Dig larger holes

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Variations in a population arise by chance.

• True

• False

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Darwin published his idea of natural selection which explained that

• species naturally go extinct

• species can adapt to their surroundings by choice

• Species have variations that give a competitive advantage and are passed on to offspring

• Species are the same and work together to survive

What is a common ancestor?

• An animal that has a lot of offspring.

• An animal from which two or more different species evolved.

• An animal that is related to many other species.

• An animal that's good at escaping from predators.

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The phenotype of an organism is

• the physical characteristics it has

• The genes it has

• The strands of DNA in the nucleus

• always advantageous

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"Survival of the Fittest" is often used to explain natural selection. What does it mean?

• The strongest individuals survive

• The fastest individuals survive

• The best-adapted individuals survive

• The smartest individuals survive

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Natural Selection is caused by variation in species along with pressure from the environment. Which could be a selection pressure from the environment?

• Drought like conditions

• Increasing temperatures

• Flooding

• The sun setting

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