Units 4-6 Review

Which of the following best describes the role of fossils in understanding evolution?

• Fossils are used to predict future species.

• Fossils provide evidence that living things evolved from earlier species.

• Fossils are only useful for dating rocks.

• Fossils show that species have always remained the same.

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NGSS.MS-LS4-1

NGSS.MS-LS4-2

What is one way genetic variation contributes to evolution?

• It prevents any changes in species.

• It allows species to adapt to environmental changes.

• It causes species to become extinct.

• It ensures all individuals in a species are identical.

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NGSS.MS-LS4-2

NGSS.MS-LS4-4

How can the inability of a species to adapt to a changing environment lead to extinction?

• The species will evolve into a new species.

• The species will migrate to a new environment.

• The species will not survive and reproduce.

• The species will become more diverse.

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NGSS.MS-LS4-1

NGSS.MS-LS4-4

What is the role of DNA in heredity?

• DNA is a protein that provides energy to cells.

• DNA contains genes that specify an organism's traits.

• DNA is a type of cell that fights infections.

• DNA is a chemical that breaks down food.

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NGSS.MS-LS3-2

Using a Punnett Square, what is the probability of obtaining a homozygous recessive genotype (aa) from a cross between two heterozygous parents (Aa)?

• 0%

• 25%

• 50%

• 75%

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NGSS.HS-LS3-3

Which of the following statements is true about fossil evidence and evolution?

• Fossil evidence contradicts the theory of evolution.

• Fossil evidence supports the idea that species have changed over time.

• Fossil evidence is irrelevant to the study of evolution.

• Fossil evidence only shows the existence of extinct species.

Tags

NGSS.MS-LS4-1

How do environmental factors influence natural selection?

• They have no effect on natural selection.

• They determine which traits are advantageous for survival.

• They ensure all individuals survive equally.

• They cause all species to become extinct.

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS4-4

What might happen to a species that cannot adapt to a rapidly changing environment?

• It will thrive and increase in number.

• It will become extinct.

• It will evolve into a completely different species overnight.

• It will remain unchanged.

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NGSS.MS-LS2-4

NGSS.MS-LS3-1

NGSS.MS-LS4-4

What is the relationship between genes and chromosomes?

• Genes are made up of chromosomes.

• Chromosomes are made up of genes.

• Genes and chromosomes are unrelated.

• Genes are larger than chromosomes.

Tags

NGSS.HS-LS3-1

In a pedigree chart, what does a shaded symbol typically represent?

• An individual with a dominant trait.

• An individual with a recessive trait.

• An individual who is a carrier of a trait.

• An individual with no known traits.