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 does a node represent in a cladogram?

Back

A node represents a common ancestor from which descendant species diverged.

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What is a taxon?

Back

A taxon is a group of one or more populations of an organism or organisms that form a unit.

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What is binomial nomenclature?

Back

Binomial nomenclature is a two-part naming system used to identify different organisms, consisting of the genus name and the species name.

Front

Which organisms are considered to have hair?

Back

Primates and rodents are examples of organisms that have hair.

Front

What is a clade?

Back

A clade is a group of organisms that includes a common ancestor and all its descendants.

Front

What is the significance of a common ancestor in a cladogram?

Back

A common ancestor indicates the point at which different species diverged from each other in evolutionary history.

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How do you determine which organisms are more closely related in a cladogram?

Back

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

Front

What is the difference between a taxon and a clade?

Back

A taxon is a broader classification group, while a clade specifically refers to a group that includes a common ancestor and all its descendants.

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What type of organisms evolved first according to evolutionary history?

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Sharks are considered to have evolved earlier than many other organisms like frogs and birds.