The inheritance of a given disorder is recorded in small families shown below: Based on the above limited information, which one of the following inheritance pattern best explains the observations?

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#Question id: 4569

#Unit 11. Evolution and Behavior

Which of the following must exist in a population before natural selection can act upon that population?

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#Question id: 4570

#Unit 11. Evolution and Behavior

Which pair would probably have agreed with the process that is depicted by this tree?

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#Question id: 4571

#Unit 11. Evolution and Behavior

Evolutionary trees such as this are properly understood by scientists to be

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#Question id: 4572

#Unit 11. Evolution and Behavior

Of the following anatomical structures, which is homologous to the wing of a bird?

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#Question id: 4573

#Unit 11. Evolution and Behavior

Which of the following pieces of evidence most strongly supports the common origin of all life on Earth?

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#Question id: 4574

#Unit 11. Evolution and Behavior

Ichthyosaurs were aquatic dinosaurs. Fossils show us that they had dorsal fins and tails, as do fish, even though their closest relatives were terrestrial reptiles that had neither dorsal fins nor aquatic tails. The dorsal fins and tails of ichthyosaurs and fish are