Evolution Review

Front

What is a vestigial structure?

Back

A vestigial structure is a body part that has lost its original function through evolution. Example: The hip bone in whales.

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NGSS.MS-LS4-2

Front

What is the correct order of organisms in an evolutionary tree based on amino acid differences in hemoglobin?

Back

Frog, horse, pig, gorilla, human.

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NGSS.MS-LS3-1

Front

What are Darwin's principles of natural selection?

Back

1. Variations exist within a population. 2. Traits are inherited. 3. There is a struggle to survive.

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NGSS.MS-LS4-4

Front

What feature separates the fly from all other insects in a cladogram?

Back

Wings used for flying.

Front

What does overproduction mean in the context of evolution?

Back

Overproduction refers to the phenomenon where organisms produce more offspring than can survive, leading to competition for resources.

Front

What is an analogous structure?

Back

An analogous structure is a body part that serves a similar function in different species but does not share a common ancestry. Example: Wings of birds and insects.

Front

What is a homologous structure?

Back

A homologous structure is a body part that is similar in structure and position but may serve different functions in different species, indicating common ancestry. Example: Forelimbs of humans and whales.

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NGSS.MS-LS4-2

Front

What is inherited variation?

Back

Inherited variation refers to the differences in traits among individuals in a population that are passed down from parents to offspring.

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NGSS.MS-LS3-2

NGSS.MS-LS4-4

Front

What is the struggle to survive?

Back

The struggle to survive is the competition among individuals for limited resources, which influences natural selection.

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

Front

What is natural selection?

Back

Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring.

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NGSS.MS-LS4-1

NGSS.MS-LS4-4