10/6 Adaptations CFU AP

1

What is the term for a feature that allows an organism to survive better in its environment?

variation

adaptation

homologous chromosome

vestigial structure

For questions #2-4 use the scenario below to help answer. A biologist spent many years researching the rate of evolutionary change in the finch populations of a group of islands. It was determined that the average beak size (both length and mass) of finches in a certain population increased dramatically during an intense drought between 1981 and 1987. During the drought, there was a reduction in the number of plants producing thin-walled seeds.

1

Which of the following procedures was most likely followed to determine the change in beak size?

Finches were captured and bred in 1981, and the beak size of the offspring was measured.

The beak size in fifteen finches was measured in 1987, and the beak size in the original finches was determined by estimation.

A few finches were trapped in 1981 and again in 1987, and their beak sizes were compared.

The beak size in a large number of finches was measured every year from 1981 to 1987.

1

Which of the following statements might best explain the increase in average beak size in the finch population during the drought?

Finches that crack large seeds develop larger beaks over time.

Finches with bigger beaks can attack and kill finches with smaller beaks.

Finches with bigger beaks are better able to crack thick-walled seeds and produce more surviving offspring

Finches with bigger beaks possess more powerful flight muscles and are able to find more food.

1

Which of the following best describes the mechanism behind the change in beak size in the finch population?

The achievement of dynamic equilibrium in the finch population as a result of homeostasis

A change in gene frequencies in the finch population due to selective pressure from the environmental change

A new allele appearing in the finch population as a result of mutation

The formation of two new finch species from a single parent species

1

In the reading above, what is the meaning of the term "selective advantage"?

1

Explain what environmental factor influenced the change in color of the peppered moth.

1

Describe the trend of the peppered moth using the graph above.

1

10/6 Adaptations CFU AP

What is the term for a feature that allows an organism to survive better in its environment?

Which of the following procedures was most likely followed to determine the change in beak size?

Which of the following statements might best explain the increase in average beak size in the finch population during the drought?

Which of the following best describes the mechanism behind the change in beak size in the finch population?

In the reading above, what is the meaning of the term "selective advantage"?

Explain what environmental factor influenced the change in color of the peppered moth.

Describe the trend of the peppered moth using the graph above.

Based on the graph above, in which year were both colored moths equal?

What is the term for a feature that allows an organism to survive better in its environment?

Which of the following procedures was most likely followed to determine the change in beak size?

Which of the following statements might best explain the increase in average beak size in the finch population during the drought?

Which of the following best describes the mechanism behind the change in beak size in the finch population?

In the reading above, what is the meaning of the term "selective advantage"?

Explain what environmental factor influenced the change in color of the peppered moth.

Describe the trend of the peppered moth using the graph above.

Based on the graph above, in which year were both colored moths equal?