Question 1

Which of the following abiotic factors is most likely to limit the distribution of acai palm trees in a region?

Accepted Answer

Sunlight availability

Question 2

According to the Theory of Island Biogeography, which combination of island characteristics would result in the highest species richness?

Accepted Answer

Large island, close to mainland

Question 3

Why do tropical wet forests (rain forests) occur primarily near the equator?

Accepted Answer

Because the equator receives consistent, high levels of sunlight and precipitation

Question 4

Which of the following best explains why precipitation in tropical wet forests is not equally distributed throughout the year?

Accepted Answer

Shifting wind patterns in the Intertropical Convergence Zone (ITCZ)

Question 5

Temperate grasslands are most likely to be found in which geographic location?

Accepted Answer

In continental interiors between 30-60 degrees latitude

Question 6

Which of the following is a past abiotic factor that could have influenced the distribution of acai palms?

Accepted Answer

Flooding events due to river changes

Question 7

A biogeographic region is best defined as:

Accepted Answer

A region where organisms have evolved in relative isolation due to geographic barriers

Question 8

Which of the following is a present biotic factor affecting acai palm distribution?

Accepted Answer

Toucans consuming and dispersing seeds

Question 9

If an island is located far from the mainland and is small in size, what would you predict about its species richness according to the Theory of Island Biogeography?

Accepted Answer

It would have low species richness due to low immigration and high extinction rates

Question 10

Which equation best represents the equilibrium number of species on an island according to MacArthur and Wilson's Theory of Island Biogeography?

Accepted Answer

$$S_{eq} is $$where the immigration and extinction rates intersect

Question 11

Which of the following is NOT a defining characteristic of a biome?

Accepted Answer

Presence of only one animal species

Question 12

A butterfly pollinating asters in a temperate grassland is an example of which type of ecological interaction?

Accepted Answer

Biotic interaction

Question 13

Which of the following best describes why boreal forests are found at higher latitudes?

Accepted Answer

They thrive in cold and wet conditions typical of higher latitudes

Question 14

Which of the following scenarios would most likely increase the extinction rate on an island, according to the Theory of Island Biogeography?

Accepted Answer

Decreasing the island's size

Question 15

Which of the following is an example of a past biotic factor influencing current species distributions?

Accepted Answer

Historical extinction of large seed dispersers

Question 16

Which of the following best explains why large islands tend to have lower extinction rates?

Accepted Answer

They have more habitats and resources, reducing competition

Question 17

Which of the following is a real-world application of the Theory of Island Biogeography outside of oceanic islands?

Accepted Answer

Explaining species richness in isolated forest patches surrounded by farmland

Question 18

Which of the following statements about biomes is correct?

Accepted Answer

Biomes are defined by dominant vegetation and distinctive abiotic conditions

Question 19

Which factor is most responsible for the presence of a continuous canopy in tropical rainforests?

Accepted Answer

Consistently high sunlight and precipitation

Question 20

Which of the following best describes the relationship between immigration and extinction rates as the number of species on an island increases?

Accepted Answer

Immigration rate decreases, extinction rate increases

Patterns in the Distribution of Organisms: Biomes, Biogeography, and Island Theory

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