Theories of Evolution

How is punctuated equilibrium characterised?

• By genetic shifts in isolated populations.

• By sudden, dramatic transformations in species over time.

• By long periods of relative species stability interrupted by rapid bursts of evolutionary change.

• By small, incremental modifications in species over time.

How do species change over extended periods of time?

• Through small, incremental modifications in their traits

• Through sudden appearances of new species

• Through major shifts in their genetic makeup

• Through rapid bursts when environmental conditions change

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What is the pattern of punctuated equilibrium?

• Long periods of gradual changes within populations

• Long periods of rapid and significant evolutionary transformation interrupted by relative species stability

• Long periods of relative species stability interrupted by rapid and significant evolutionary transformation

• Long periods of stasis followed by sudden appearances of new species

How does punctuated equilibrium differ from evolution by gradualism?

• It involves sudden, dramatic transformations.

• It involves small, incremental modifications over time.

• It involves genetic shifts in isolated populations.

• It involves rapid bursts of evolutionary change.

What is natural selection?

• The mechanism through which advantageous traits are passed on to offspring.

• The process by which species change through sudden, dramatic transformations.

• The process by which species change through rapid bursts of evolutionary change.

• The process by which species change through genetic shifts in isolated populations.

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When does evolution occur in relatively rapid bursts?

• When species undergo rapid bursts of evolutionary change due to strong selection pressures.

• When species undergo genetic shifts in isolated populations.

• When species undergo sudden, dramatic transformations.

• When species undergo small, incremental modifications over time.

Who observed the variation of organisms in Galapagos Island?

• Charles Darwin

• Charles Lyell

• Jean Baptiste de Lamarck

• James Hutton

Who proposed the Theory of Acquired Characteristics?

• Charles Darwin

• Charles Lyell

• Jean Baptiste de Lamarck

• James Hutton

What concept states that having many offspring increases the chance that some of them will survive?

• Adaptation

• Descent with modification

• Overproduction

• Variation

what theory states that organs not in use will disappear while organs in use will develop?

• Theory of Acquired characteristics

• Theory of Evolution

• Theory of Natural Selection

• Theory of use and disuse