Biology - Unit 7 (Evolution & Classification) Review

Genetic differences between organisms of the same species

• Variation

• Adaptation

• Behavior

• Environment

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What is the advantage of finches having different shaped beaks?

• To look different from other species.

• To be able to eat the food readily available in the environment.

• To protect itself against predators.

• To protect itself against prey.

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Remains of ancient organisms are called

• Extinctions
• Fossils
• Mutations
• Variations

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A well-tested concept that explains a wide range of observations is called a(an):

• hypothesis
• experiment
• cause and effect
• scientific theory

Which of the following is NOT an example of natural selection?

• People selectively breeding hamsters.

• Insect populations developing resistance to certain pesticides.

• Bacteria becoming resistant to antibiotics.

• Male birds of certain species developing colorful feathers to attract female mates.

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What characteristic did Darwin observe about the finches on the Galapagos Islands?

• Their feathers 
• Genotypes 
• Their beaks
• Their body sizes

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Two organisms that are closely related would have

• very similar DNA sequence

• exactly the same DNA sequences

• no proteins in common

• completely different DNA sequence

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The separation of a group of individuals from the rest of the population is referred to as

• genetic drift

• natural selection

• geographic isolation

• survival of the fittest

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Which of the following is a term for a group of similar organisms that can reproduce fertile offspring?

• individual

• population

• species

• fossil

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Which is an example of a vestigial structure?

• the wings of a red-tailed hawk

• the hind limbs of a house cat

• the fins of sharks

• the wings of an ostrich

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