Evolution Test Review

The term extinct means no longer existing or living. Which of the following is a situation that could lead to extinction of a species?

•  increased habitat in a larger area

• increased food supply including a large variety

• increased competition between organisms for the same food source

• increased height of next generation of organisms

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NGSS.MS-LS2-1

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Evolution is known as:

• adaptations in an individual that help that help them survive

• changes in a population over time

• similarities in structures between two different organisms

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NGSS.MS-LS4-2

NGSS.MS-LS4-4

Small changes over time that give rise to a new species is known as _____. An example is the disappearance of hind legs in the whale.

• descent with modification

• homologous structures

• vestigial structures

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NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which definition below applies to vestigial structures?

• structures that are built the same between two organisms that do not necessarily have the same function

• slight changes over time that give rise to new species

• structures in an organism that have lost their function due to natural selection

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NGSS.MS-LS4-2

Structures that are built the same but do not necessarily have the same function are called:

• homologous structures

• molecular homologies

• vestigial structures

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NGSS.MS-LS4-2

Which of the pairs below is NOT an example of homologous structures?

• human arm (bones) and whale flipper (bones)

• chicken wing (bones) and bat wing (bones)

• bat wing (bones) and fruit fly wing (exoskeleton)

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NGSS.MS-LS4-2

Evolutionary relationships between organisms is known as:

• cladograms

• phylogeny

• descent with modification

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NGSS.MS-LS4-2

NGSS.MS-LS4-3

Which organism is most closely related to the fruit fly?

• Chicken

• Human

• Trout

• Whale

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NGSS.MS-LS4-2

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Which organisms do NOT have bones?

• Chicken

• Fruit fly

• Human

• Trout

• Whale

Where do we find the common ancestor on a cladogram?

• all the way at the top

• at the branch points (where lines connect)

• all the way at the bottom

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NGSS.MS-LS4-2