Unit 5: Evidence for Evolution 2

Front

The bones of the forelimbs (wing or arm) of three animals are shown in the illustration. What is the most reasonable conclusion that can be drawn from a comparison of these structures?

Back

The common ancestor of birds and bats must have had wings and flown.

Front

Why do whales, which live in the water, have hips, a structure important for land animals?

Back

Whales share a common ancestor with animals that walk on land.

Front

Why do turtles in the Galapagos Islands have different necks?

Back

Each turtle is adapted to the environment on the island they live on.

Front

Finches on the Galapagos Island were similar in form except for variations of their beaks. Darwin observed that these variations were useful for: attracting a mate, defending territory, building nests, gathering food

Back

gathering food

Front

Adaptation to classify elephant shrews with aardvarks: Eyes, Nose, Ears, Coloration

Back

Nose

Front

In the diagram, the organisms have: Homologous Structures, Analogous Structures, Vestigial Structures

Back

Homologous Structures

Front

In humans, the pelvis and femur (leg bone) are used in walking. In whales, the pelvis and femur are:

Back

Whales share a common ancestor with animals that walk on land.

Front

Explanation for change in moth population in the diagram.

Back

The trees where peppered moths rest become lighter in color.

Front

Bat wings and butterfly wings are examples of what type of structure?

Back

Analogous Structures

Front

Which scientist developed a theory of evolution by natural selection?

Back

Charles Darwin