AP Bio Unit 7 Test Review Game

Which of the following factors would most likely lead to an increased ability of a theoretical population to survive over time?

• a population that contains strong organisms

• a population with a low amount of genetic variation

• a population with a high amount of genetic variation

• a population that contains tall organisms

Which of the following best describes what the image represents?

• Genetic Drift

• Natural Selection

• Gene Flow

• Gene Pool

Which of the following is an example of artificial selection?

• White tigers are becoming extinct, to overcome this a male and female white tiger are paired together in captivity to help their population continue to grow.

• A blue bird-of-paradise gets lost in a new area and mates with a red bird-of-paradise.

• A lizard with a long tail goes onto a container ship to find food and ends up staying on the ship while is moves from Europe to North America.

• Giant pandas over time develop a different type of tooth in order to change their diet because their preferred plant goes extinct.

Blue catfish are going extinct. A dam in a lake full of blue catfish bursts due to poor engineering and kills some of the blue catfish. This is an example of...

• Genetic Drift

• Gene Flow

• Natural Selection

• Mutations

Green rhinoceros beetles are some of the biggest beetles to exist on Earth. A green rhinoceros beetle leaves its group and migrates over to another group that only has red rhinoceros beetles and mates with the red beetles. This is an example of...

• Gene Flow

• Genetic Drift

• Natural Selection

• Gene Pool

Undersea landslides can disrupt marine habitats by burying organisms that live on the ocean floor. The graph above shows the size of a population of a certain organism that lives on the ocean floor. The population was affected by a recent landslide at the time indicated on the graph. Which of the following best predicts how the population will be affected by the landslide?

• The surviving organisms will evolve into a new species.

• The reduced population will likely have allelic frequencies that are different from the initial population.

• The population will adapt to deeper waters to avoid future landslides.

• The reduced population will have a greater number of different genes than the initial population.

The table shows the changes in allele frequencies of a specific gene in two populations of randomly mating small mammals after 30 years. The populations inhabit adjacent equatorial islands that have similar topography and climate. Which of the following is the most reliable conclusion that can be drawn from analysis of the data above?

• Genetic drift has occurred in population 1.

• Population 2 is in Hardy-Weinberg equilibrium.

• Selection for allele "r" is occurring in both populations.

• The reduced frequency of allele "R" in population 1 will eventually lead to the extinction of population 1.

Members of one population of the striped stem borer insect engage in mating behavior in the early hours of the night, whereas members of a second population mate much later during the night. Crossbreeding between individuals from the two populations produces offspring that mate at an intermediate time. Which of the following is the most likely cause of the different timing of mating behavior between the two populations?

• Gene flow between the populations

• The difference in learned behavior between the populations

• The seasonal difference in day length

• Genetic variation between the populations

Which of the following pieces of evidence best supports the hypothesis that birds and crocodilians (crocodiles and alligators) are more closely related to each other than they are to other organisms?

• Modern birds and crocodilians utilize different niches within the same geographical region.

• Like turtles and snakes, modern birds and crocodilians build nests in which they lay shelled eggs.

• The skulls of birds and crocodilians have an opening that is absent in the skulls of other reptiles.

• Fossil evidence indicates that both modern birds and crocodilians originated during the Jurassic Period.

Different photosynthetic organisms have different types of chlorophyll molecules. The distribution of chlorophylls in several different groups of organisms is shown in Table 1. A plus sign (+) in the table indicates the presence of a chlorophyll, while a minus sign (−) indicates its absence. Based on the data, which of the following most likely describes the evolutionary relationship among the organisms?

• Because all of the organisms contain chlorophyll a, the organisms share a common ancestor.

• Because increasingly complex forms of chlorophyll are found in red algae, brown algae, green algae, and flowering plants, respectively, this reflects the order of their appearance.

• Because green algae and flowering plants contain chloroplasts, they evolved more recently than brown algae, red algae, and cyanobacteria did.

• Because brown algae, red algae, and cyanobacteria lack chlorophyll b, they evolved before green algae and flowering plants did.