The Theory of Island Biogeography suggests:

greater species richness on islands that are larger and closer to the mainland.

greater species richness on islands that are smaller and farther from the mainland.

greater species richness on islands that are smaller and closer to the mainland.

greater species richness on islands that are larger and farther from the mainland.

Which of the following is an example of a cultural ecosystem service provided by forests?

scenic and recreation areas for tourism

landscaping and timber materials

air purification and soil stabilization

The many finch species of the Galápagos Islands evolved from a single species that immigrated to the islands from the coast of South America. These species differ primarily in beak shape, which is closely related to the type of food each species specializes in eating. Which of the following best explains why each of the finch species on the Galápagos Islands evolved to be specialists?

Species are forced to feed on a small range of food items due to limited food resources on islands.

Climate is less variable on islands than on the mainland minimizing seasonal absences of food.

There is reduced competition from other birds species allowing finch species to focus on specific food resources.

Food resources on islands are more plentiful and nutrient rich than on the mainland, leading to specialist behaviors in feeding.

Which of the following would most likely result from the deforestation of large areas of tropical rain forests caused by slash-and-burn agriculture?

An increase in global temperature due to the release of carbon dioxide.

An increase in ozone thinning due to the release of CFCs

A decrease in acid rain due to the sequestration of sulfur dioxide

A decrease in evaporation due to the loss of the tree canopy

Climate change would most likely have the greatest impact on which of the following groups of species?

Organisms in extreme environments, such as polar bears

Organisms in temperate communities adapted to seasonal changes

Organisms in communities around volcanic thermal rift vents

Which of the following is a measure of the biodiversity of an ecosystem?

The total number of different plant species

The total number of individuals of a single animal species

The density of individuals in a hectare

The soil depth at which burrowing insects are located

Which of the following correctly describes the disruption of an ecosystem service by an anthropogenic activity?

Provisioning services are disrupted by increased combustion of fossil fuels, which leads to an increase in air pollution.

Regulating services are disrupted by flash flooding from a hurricane, which decreases available food resources.

Supporting services are disrupted by an earthquake that causes habitat destruction, which displaces plants and animals.

Cultural services are disrupted by a tornado that causes the loss of acres of forest, which reduces the amount of harvestable timber.

An asteroid impacted Earth approximately 66 million years ago, near what is now the Gulf of Mexico, causing the Cretaceous-Tertiary extinction event. The indirect effects of the impact affected the entire globe. The event resulted in the extinction of nearly 75 percent of all plant and animal species on Earth, including the majority of dinosaur species. Which of the following likely best describes why most of these species went extinct?

Rapid climate and habitat change

Increase in genetic diversity in most species

Which of the following explanations best explains why smaller islands have a greater rate of species extinction than larger, less isolated islands?

Small isolated islands have a lower availability of resources.

Small isolated islands are more likely to receive more migrating species.

Small isolated islands provide opportunities for a greater diversity of species.

Because they have fewer available niches, small isolated islands are targeted and colonized by species.

Which of the following leads to a decrease in biodiversity?

forest management and selective cutting

Which of the following statements about levels of biodiversity is correct?

A population with high genetic biodiversity is better able to respond to environmental stressors.

Genetic biodiversity is a measure of the total number of genes in a community.

A narrow distribution of habitats leads to an increase in species diversity.

Global hotspots are areas where species diversity is thriving due to habitat restoration.

Which of the following best explains how environmental stressors, such as wildfires, can affect biodiversity in an ecosystem?

Ecosystems with more species diversity are more likely to recover after a disturbance than ecosystems with low species diversity.

After an environmental stress, a genetic bottleneck may occur, which will increase genetic diversity.

Habitat diversity will increase the available niches if the landscape becomes more uniform after a disturbance.

Smaller populations are less likely to go extinct than larger populations, so the species diversity will remain constant.

Which of the following is the most significant factor when determining the diversity of an ecosystem?

The number of organisms present

The amount of land the ecosystem covers

The amount of precipitation the ecosystem receives.

The interactions between producers and consumers.

Population biologists are concerned about introduced or exotic species, such as zebra mussels in North America, because:

the introduced species compete for resources more effectively than native species.

their removal from their native habitat has a negative impact.

predators of the introduced species often overpopulate because of the influx of the introduced species.

introduced species often become endangered when they are placed in a new habitat.

Small populations of animals, such as those typically found on islands, are prone to extinction because:

they are more vulnerable to unpredictable events.

they contain a high degree of genetic variability.

they tend to have more predators.

their habitats are more stable.

they are usually generalist species.

A 1,500 square km small island is found 2,000 km from the mainland. A second, larger, 250,000 square km island is found 1,000 km from the mainland. Based on the theory of island biogeography, which of the following statements is most likely true about the small island when compared with the large island?

The rate of immigration is lower for the small island than for the large island.

The small island has niches that are more like the mainland than the large island.

The small island has more available resources than the large island.

The rate of species extinction is lower on the small island than on the large island.

A one-hectare pond is sampled in early September. The sample yields 1 small catfish as well as 17 benthic invertebrates that represent 10 species. Which of the following can be estimated from the sample for the invertebrates in the pond?

The uniformity of species distribution in the pond

Which of the following best describes a supporting ecological service provided by wetlands?

Wetlands provide a habitat for a wide variety of organisms.

Wetlands serve as a source of aesthetic inspiration for art and literature.

Wetlands provide opportunities for ecotourism, which provides revenue to the local economy.

Wetlands serve as a major reservoir for nitrogen in the nitrogen cycle.

Unit 2: Intro, Eco Services, and Island Biogeography

Authored by Joshua Brown

Science

9th - 12th Grade

NGSS covered

Used 56+ times

Unit 2: Intro, Eco Services, and Island Biogeography

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MULTIPLE CHOICE QUESTION

45 sec • 1 pt

How is genetic diversity best defined?

The diversity within a species

The number of species within the ecosystem

The variety of ecosystems within a region

The number of endemic species on a given island

Tags

NGSS.MS-LS4-4

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which statement best describes the bottleneck effect?

A population size is increased because of an environmental event. This increases the genetic variation and can increase biodiversity.

A population size is reduced because of an environmental event. This reduces the genetic variation and can lead to a loss of biodiversity.

A population size is reduced because of an environmental event. This increases the genetic variation and can lead to greater biodiversity.

Tags

NGSS.HS-LS3-2

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

How is species richness best defined?

The diversity within a species

The variety of ecosystems within a region

The number of species within the ecosystem

The number of generalist species on a given island

Tags

NGSS.MS-LS2-5

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Ecosystem services that give humans products needed for survival, such as food and lumber, are called:

provisioning services

regulating services

cultural services

supporting services

Tags

NGSS.MS-LS2-5

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Ecosystem services that provide humans with beauty, spiritual benefits, and recreation are called:

provisioning services

regulating services

cultural services

supporting services

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Ecosystem services that indirectly benefit humans and control the rate of events in an ecosystem, such as plants purifying air and bees pollinating plants, are called:

provisioning services

regulating services

cultural services

supporting services

Tags

NGSS.MS-LS2-5

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Ecosystem services that sustain human life and life on Earth, such as oxygen production and water cycling, are called:

provisioning services

regulating services

cultural services

supporting services

Tags

NGSS.MS-LS2-5

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Unit 2: Intro, Eco Services, and Island Biogeography

How is genetic diversity best defined?

Which statement best describes the bottleneck effect?

How is species richness best defined?

Ecosystem services that give humans products needed for survival, such as food and lumber, are called:

Ecosystem services that provide humans with beauty, spiritual benefits, and recreation are called:

Ecosystem services that indirectly benefit humans and control the rate of events in an ecosystem, such as plants purifying air and bees pollinating plants, are called:

Ecosystem services that sustain human life and life on Earth, such as oxygen production and water cycling, are called:

The Theory of Island Biogeography suggests:

Organisms, like koalas, that require specific habitats and food resources are called:

Organisms, like cockroaches, that can live in a variety of habitats and feed on many different food sources are called:

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