Evolution Bio SJHS

Individuals that are well adapted to their environment will survive and produce:

• Fewer mutations
• Stronger genes
• More offspring
• Better traits

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You look at two species and see very similar DNA. What does this likely tell you?

• These are the same animal.
• These animals have a common ancestor.
• These animals are not likely related.
• These animals are likely becoming one species.

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An inherited characteristic that increases an organisms ability to survive and reproduce in its specific environment is called a(n)

• vestigial structure
• speciation
• analogous structure
• adaptation

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According to the theory of natural selection, some individuals more likely than others to survive and reproduce because they:

• pass on to their offspring their newly acquired traits.
• are better adapted to their environment than others and will pass on those adaptations to future offspring.
• do not pass on newly acquired traits.
• produce fewer offspring than others in the same environment.

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Lamarck’s theory of evolution includes the concept that new traits appear because:

• natural variation and natural selection.
• use and disuse
• the environment is unchanged
• the natural variations are present within a population.

When every organism of a species has died.

• Evolution
• Natural Selection
• Extinction
• Artificial Selection

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Natural selection

• process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest
• Humans select which animals live and die
• both 
• IDK

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Which of the following means "change over time"

• natural selection
• speciation
• evolution
• isolation

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___ are mistakes in the DNA that cause variation within a species.

• mutations
• adaptations
• speciations
• isolations

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Organisms with the most beneficial traits will survive. This is commonly known as ___.

• idk

• variations

• survival of the fittest

• ecosystems