16.1 and 16.2 Review

What patterns of variation did Darwin observe among rheas, ostriches, and emus?

Who observed variations in the characteristics of plants and animals on different islands of the Galapagos?

Species are not fixed, and they change in response to their environment

Select an example of evolution or a change over time

Artificial selection CAN occur without inherited variation

Geological processes uplifted a former sea bed to form mountains

Hutton and Lyell explained that the Grand Canyon formed from the Colorado River gradually wearing away rocks

Why was Lyells theory?

In addition to observing living organisms, Darwin studied the perceived remains of ancient organisms called

Which of the following would an animal breeder use to increase the number of cows that give the most milk?

A trait altered during an organism's life

Which of the following ideas proposed by Lamarck was later found to be incorrect?

Population size is NOT limited by overcrowding, lack of food, war, disease or famine.

How did Malthus influence Darwin?

The process of selectively breeding plants and animals to have desired traits

Galapagos tortoises exhibited different traits depending on the environment of the island where they lived

Select the type of variation among organisms that Darwin did NOT observe