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.

Front

What characteristic distinguishes amphibians from birds and reptiles?

Back

Amniotic egg.

Front

What is an adaptation?

Back

An inherited characteristic that increases an organism's ability to survive and reproduce in its specific environment.

Front

Which organism is most distantly related to humans according to a cladogram?

Back

Crayfish.

Front

Which organism is the closest relative of humans according to a cladogram?

Back

Hare.

Front

What common characteristic do all animals to the right of the hagfish have?

Back

Jaws.

Front

What is a vertebrate?

Back

An animal that has a backbone or spinal column.

Front

What are analogous structures?

Back

Structures in different species that have similar functions but evolved independently, not from a common ancestor.

Front

What are vestigial structures?

Back

Body parts that have lost their original function through evolution.

Front

What is speciation?

Back

The process by which new species arise from existing species.