Cluster 4 Day 1-Evolution and Natural Selection

Cluster 4 Day 1-Evolution and Natural Selection

Multiple Choice

Charles ate a hamburger for lunch. Later that day, he ran 2 miles during football practice. Which of the following energy transformations occurred between lunchtime and the end of Charles’ run?

• Thermal energy was converted to kinetic energy.

• Kinetic energy was converted to chemical energy.

• Electrical energy was converted to thermal energy.

• Chemical energy was converted to mechanical energy.

Multiple Choice

Which of the following correctly describes evolution?

• Organisms change very quickly, changing to have the characteristics they wish to have

• Organisms change slowly, over many generations

Multiple Choice

What do these fossils show about the modern horse and its ancestors?

• These fossils show that there were no similarities between the modern horse and its ancestors

• These fossils show that the modern horse shared many similar characteristics with its ancestors

Multiple Choice

Which of these pictures shows genetic variation?

• Picture 1

• Picture 2

Fill in the Blanks

If species is not able to

quickly enough to environmental pressures, they will go extinct.

Multiple Choice

Why is there more brown bugs in generation 2?

• Because the white bugs were able to change to dark bugs so that the birds wouldn’t see them

• Because the dark bugs were able to survive and reproduce, passing their genetic traits to their offspring

Open Ended

From looking at the pictures, why is it so important for a species to have genetic variation?

Multiple Choice

The birds shown in the pictures live on different islands that are close together. These four bird species are closely related, and all of them share a common ancestor with a single species. What environmental factor is most likely to have caused this diversity of species?

• The same food source is available on each island

• When the ancestral species arrived at the different islands, there was only one food source available and no need for different beak shapes.

• There were different food sources available on each island, and different beak shapes evolved for the most efficient eating.

• The different shaped beaks are a random occurrence and are not affected by the surrounding environment