Evolution Review

True or False: Evolution tells us about how life first appeared on Earth.

• True

• False

Fill in the blank: Individuals do not evolve. Only _______ can evolve.

• populations

• individuals

• cells

• organs

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True or False: All changes are 'good'.

• True

• False

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Changes that happen to a person in their lifetime always get passed on to their children.

• True

• False

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True or False: Evolution is a ladder working towards a better species.

• True

• False

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Natural selection leads to evolution by:

• favoring individuals with advantageous traits, leading to changes in populations over time

• eliminating all genetic variation in a population

• causing individuals to adapt during their lifetime and pass on those adaptations

• ensuring that all offspring are identical to their parents

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Fill in the blank: Evolution, or ________, is the process by which modern organisms have descended from ancient organisms.

• change over time

• natural selection

• genetic drift

• mutation

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Natural Selection: Organisms that are best adapted to an environment _______ and _______ more than others. Fill in the blanks.

• survive, reproduce

• eat, sleep

• migrate, hibernate

• grow, shrink

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According to the definition of natural selection, which organisms are more likely to survive and reproduce?

• Those best adapted to the environment

• Those least adapted to the environment

• All organisms equally

• Only the largest organisms

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Look at the diagram of the giraffes. Which giraffe is most likely to survive and reproduce according to natural selection?

• The giraffe with the longest neck

• The giraffe with the shortest neck

• All giraffes equally

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