Cladograms and Phylogentic Trees

Front

What is a cladogram?

Back

A cladogram is a diagram that shows the evolutionary relationships among a group of organisms, illustrating how species are related through common ancestors.

Front

What is a phylogenetic tree?

Back

A phylogenetic tree is a branching diagram that represents the evolutionary history of a group of organisms, showing how they have diverged from common ancestors over time.

Front

What trait do only humans have according to cladograms?

Back

Bipedalism and opposable thumbs.

Front

Which organisms are least related to birds according to cladograms?

Back

Sharks.

Front

What is a vertebral column?

Back

A vertebral column, or backbone, is a series of vertebrae that protect the spinal cord and provide structural support to the body.

Front

Which organism does not have a vertebral column?

Back

Lancelet.

Front

What are amniotic eggs?

Back

Amniotic eggs are eggs that have a protective shell and contain a fluid-filled sac, allowing the embryo to develop on land.

Front

Which animals have amniotic eggs?

Back

Turtles and leopards.

Front

What is a common ancestor in evolutionary biology?

Back

A common ancestor is a species from which two or more different species have evolved.

Front

What does it mean for organisms to be closely related?

Back

Organisms are closely related if they share a recent common ancestor in their evolutionary history.