Biology Unit 2 Test: Evolution

Which of the following statements does not support the theory of evolution?

• The fossil record shows a progression from simple to more complex organisms over time.

• Comparative embryology reveals that embryos of different species show significant similarities.

• Genetic mutations are random and do not contribute to evolutionary processes.

• Biogeography demonstrates that isolated populations evolve differently.

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Which of the following does NOT indicate a shared evolutionary origin?

• A) DNA sequences

• B) embryonic development

• C) analogous structures

• D) homologous structures

When exploring the evolutionary lineage of organisms, which of these biological molecules is least useful for understanding their ancestral connections?

• DNA

• proteins

• nucleic acids

• phospholipids

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NGSS.HS-LS4-1

What term do scientists use to refer to structures that appear different externally but share a similar internal structure and originate from the same embryonic tissues?

• common ancestry

• analogous structures

• vestigial organs

• homologous structures

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Which of the following is NOT necessary for the formation of a new species?

• Genetic diversity

• Environmental pressures

• Reproductive isolation

• Abundant resources

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The gradual change in species over time is...

• Evolution
• Nucleotide 
• Adaptation
• Natural Selection

The five-factors for evolution are gene flow, genetic drift, mutation, natural selection and ....

• non-random mating

• controlled mating

• emigration

• immigration

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What mechanism of evolution is this?

• Gene Drift
• Natural Selection
• Sexual Selection
• Gene Flow

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The picture shows a/an ___________

• homologous structure

• vestigial structure

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The similarities of the bones in the diagram provide evidence that---

• The organisms shown lived in the same natural envionrment
• The organisms shown may have developed from a common ancestor
• The organisms shown have the same genetic diseases
• All vertebrate species have identical forelimbs

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NGSS.MS-LS4-2