Biology 2nd Semester Review

TRUE or FALSE...

Scientists use evidence (facts) from multiple independent fields of study to learn how living things evolve.

• True.

• False. Evolution is just a theory and cannot be proven scientifically.

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TRUE or FALSE...

Humans evolved from chimpanzees.

• True.

• False. Humans and chimpanzees share a relatively recent common ancestor.

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According to the Primate Cladogram above, the common ancestor of HUMANS and TARSIERS lived approximately ________ years ago.

• 30 million

• 40 million

• 50 million

• 60 million

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TRUE or FALSE...

These organisms have similar bones that are arranged in a similar pattern because they share a common ancestor.

• True.

• False. It is impossible for a human to be related to a whale or bat.

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Select the BEST definition of biological evolution.

• The hypothesis of how chimpanzees changed into humans.

• A prediction of how life changes which has not yet been proven.

• Genetic change in populations over time.

• When an entire species changes into an improved species.

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Who was the British naturalist that provided the basis of the scientific theory of evolution by means of natural selection?

• Gregor Mendel

• Charles Darwin

• Carolus Linnaeus

• Heinz Dufenschmirtz

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TRUE or FALSE...

Mutations that occur within a population's gene pool will either be GOOD or BAD for the population's fitness.

• True.

• False. Mutations that occur within a population's gene pool can be good, bad, or have no effect (benign) for the population's fitness.

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The build-up of traits that are advantageous (good) in a given environment are called ________.

• mutations

• variations

• adaptations

• none of these

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What is the ultimate source for most of the energy for life on Earth?

• Red Bull

• DNA

• Cells

• The sun

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What is the energy transfer system used by all cells?

• ATP

• DNA

• Sunlight

• H₂O

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