Cladograms

Front

What is a cladogram?

Back

A cladogram is a diagram that shows the evolutionary relationships among various biological species based on similarities and differences in their physical or genetic characteristics.

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What do the branches in a cladogram represent?

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The branches in a cladogram represent the evolutionary pathways and relationships between different species or groups.

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What is a common ancestor in the context of cladograms?

Back

A common ancestor is a species from which two or more species have evolved. In a cladogram, it is represented at the point where branches diverge.

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How can you determine which organisms are more closely related on a cladogram?

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Organisms that share a more recent common ancestor on a cladogram are considered more closely related.

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What does it mean if two species are on the same branch of a cladogram?

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If two species are on the same branch, it indicates that they share a more recent common ancestor compared to species on different branches.

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What is the significance of the length of branches in a cladogram?

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The length of branches can indicate the amount of evolutionary change or time that has occurred between the species.

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What are the three domains of life?

Back

The three domains of life are Bacteria, Archaea, and Eukarya.

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Which two domains of life are most closely related?

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Archaea and Eukarya are the two domains of life that are most closely related.

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What type of organisms are classified under the domain Eukarya?

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The domain Eukarya includes organisms with complex cells, such as animals, plants, fungi, and protists.

Front

What is the relationship between birds and dinosaurs according to cladograms?

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Birds are closely related to Saurischian dinosaurs, indicating that they share a common ancestor.