Biology Ev11 Flashcard Phylogeny and Cladistics

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What is cladistics?

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A method of comparing traits in related species to determine ancestor-descendant relationships.

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What is phylogeny?

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The evolutionary history of a group of related organisms.

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What does a phylogenetic tree represent?

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The evolutionary history of a group of related organisms.

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What is a clade?

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A group of organisms that includes an ancestor and all of its descendants.

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How many animals on a cladogram have lungs if the answer is 5?

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5

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What is the primary focus of cladistics?

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To classify organisms based on shared characteristics and evolutionary relationships.

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What is the significance of a phylogenetic tree in biology?

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It visually represents the evolutionary relationships among various species.

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What is the difference between cladistics and phylogeny?

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Cladistics focuses on the classification based on shared traits, while phylogeny refers to the evolutionary history.

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What is a common tool used to illustrate evolutionary relationships?

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Phylogenetic tree.

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What does it mean if two species share a common ancestor?

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They are likely to have similar traits and evolutionary histories.