Phylogenetic Trees

Front

What is a phylogenetic tree?

Back

A branching diagram that shows the evolutionary relationships between organisms connected by a common ancestor.

Front

What trait (adaptation) was developed most recently among tetrapod limbs, feathers, and amnion?

Back

Feathers.

Front

What is a cladogram?

Back

A specific type of tree that includes traits of species on the tree.

Front

Who is the closest relative to the brown bear?

Back

Sun bear.

Front

What is an adaptation?

Back

An inheritable characteristic that gives a survival advantage to the organism.

Front

What are fossil records?

Back

Remains or traces of organisms from the past, preserved in geological formations.

Front

What is speciation?

Back

The process by which new and distinct species evolve from existing species.

Front

What is a derived character?

Back

A trait that is present in an organism but was absent in the last common ancestor of the group being considered.

Front

What is the significance of common ancestors in phylogenetic trees?

Back

Common ancestors indicate the evolutionary relationships and shared traits among different species.

Front

How do scientists use phylogenetic trees?

Back

To understand the evolutionary history and relationships among various organisms.