Front

Common descent

Back

Describes how a group of organisms share a most recent common ancestor.

Front

Which is more closely related?

Back

Gorilla and Human are more closely related than the other pairs.

Front

Similar DNA between two species indicates what?

Back

These animals have a common ancestor.

Front

What do well-adapted individuals produce?

Back

More offspring.

Front

According to a cladogram, birds are least related to which group?

Back

Sharks.

Front

What is a cladogram?

Back

A diagram that shows the evolutionary relationships among various biological species.

Front

What does a node represent in a cladogram?

Back

A common ancestor of the species that branch from that node.

Front

What is the significance of shared derived characteristics?

Back

They indicate evolutionary relationships and common ancestry.

Front

What is the difference between homologous and analogous structures?

Back

Homologous structures share a common ancestry, while analogous structures serve similar functions but do not share a common ancestor.

Front

What is the principle of parsimony in cladistics?

Back

The simplest explanation, or the one that requires the least number of evolutionary changes, is preferred.