Evolution Unit Flashcard

Front

What causes variation in heritable traits among individuals in a population?

Back

Variation in heritable traits is caused by randomly occurring mutations.

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NGSS.MS-LS3-1

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Front

What is a mutation?

Back

A mutation is a change in the DNA sequence.

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NGSS.MS-LS3-1

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What is an example of evolution by natural selection?

Back

The increasing resistance of bacteria to antibiotics is an example of evolution by natural selection.

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NGSS.MS-LS4-4

Front

What can cause extinction?

Back

Causes of extinction can include increased competition with other species, new predators, loss of habitat, and catastrophes.

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NGSS.MS-LS4-1

Front

What does it mean if hornless cows have horned offspring?

Back

This indicates a mutation in the population, as the offspring have a different trait than the parents.

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NGSS.MS-LS3-1

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Front

Define natural selection.

Back

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

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NGSS.MS-LS4-4

Front

What is genetic variation?

Back

Genetic variation refers to the differences in DNA among individuals within a population.

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Front

How do mutations contribute to evolution?

Back

Mutations introduce new genetic variations, which can lead to changes in traits that may be beneficial for survival.

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NGSS.MS-LS3-1

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Front

What is the role of competition in evolution?

Back

Competition for resources can drive natural selection, as only the fittest individuals survive and reproduce.

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NGSS.MS-LS2-4

Front

Explain the concept of adaptation.

Back

Adaptation is a trait that enhances an organism's ability to survive and reproduce in its environment.

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