H. Biology Phylogenetic Trees

Front

What are the groups in a phylogenetic tree called?

Back

Taxa

Front

What is the best outgroup when building a phylogenetic tree of cats?

Back

Frog

Front

Which organism is most closely related to the polar bear?

Back

European brown bear

Front

What is the category above the kingdom level in biological classification?

Back

Domain

Front

What do anatomical similarities and differences between organisms help us infer?

Back

Evolutionary history and descent.

Front

What is a phylogenetic tree?

Back

A diagram that represents evolutionary relationships among various biological species.

Front

What is the significance of nodes in a phylogenetic tree?

Back

Nodes represent common ancestors in the evolutionary history.

Front

What does the term 'outgroup' refer to in phylogenetics?

Back

An outgroup is a species or group that is closely related to the study group but not part of it.

Front

What is the purpose of using outgroups in phylogenetic analysis?

Back

To provide a reference point for determining the evolutionary relationships of the ingroup.

Front

What does a branch in a phylogenetic tree represent?

Back

A branch represents the evolutionary path between two taxa.