9. Limiting factors in an ecosystem:

c. Can be biotic or abiotic and determine the carrying capacity.

a. Always increase the population size.

b. Are only abiotic factors like temperature and weather.

d. Have no effect on population growth.

10. What is the significance of a population's carrying capacity?

b. It's the maximum population an ecosystem can support indefinitely.

a. It's the point where population growth stops.

c. It's the total number of species in an ecosystem.

d. It's the amount of area available for colonization.

13. A population pyramid is used to show:

b. The age and gender structure of a population.

a. The distribution of resources in an ecosystem.

c. The territorial boundaries of different species.

d. The biodiversity within a specific habitat.

14. Real-life connection: How has urban development affected animal populations in metropolitan areas?

b. By reducing available habitat and resources.

a. By increasing their genetic diversity.

c. By promoting migration to cities.

d. By having no significant impact.

15. Real-life connection: Which factor can cause a sudden decrease in population due to a non-selective disaster?

b. A density-independent factor like a hurricane.

a. A density-dependent factor like predation.

c. A biotic factor like competition.

d. A social factor like tourism.

16. Real-life connection: What are the consequences of high birth rates on a country's economy?

b. Strain on educational and healthcare systems.

d. More efficient resource use.

17. Real-life connection: Why is understanding population growth rates important for public health planning?

b. To predict and manage resource needs for healthcare services.

a. To ensure the population stays within the carrying capacity.

c. To enforce immigration laws.

d. To monitor the birth and death rates only.

18. Real-life connection: In agriculture, how do monocultures affect the carrying capacity for pests?

a. Decrease the carrying capacity due to lack of food variety.

b. Increase the carrying capacity by providing ample food resources .

c. No effect as pests are not influenced by monocultures.

d. Monocultures diversify pest species, increasing carrying capacity.

19. Real-life connection: How can invasive species impact the population dynamics of native species?

a. By decreasing the native species' reproductive potential.

b. By introducing new diseases to which native species have no immunity.

c. By altering the native habitat, affecting the carrying capacity.

20. Real-life connection: The overuse of antibiotics in livestock can lead to what population-level effect in bacteria?

c. Increased resistance in bacterial populations.

b. Increased genetic uniformity.

21. Real-life connection: What effect does the destruction of coral reefs have on fish populations?

b. Decreases the fish population due to habitat loss.

a. Increases the carrying capacity for fish.

c. No effect, as fish can adapt quickly to new habitats.

d. Increases biodiversity by forcing fish to migrate.

22. Real-life connection: How does climate change affect the distribution of species across different altitudes and latitudes?

b. Species may shift to higher altitudes and latitudes seeking cooler environments.

a. Species distribution remains unchanged.

c. Species diversity decreases at higher altitudes.

d. Climate change mainly affects aquatic species' distribution.

23. Real-life connection: Considering the impact of global warming, what could be a potential effect on animal and plant populations in the Arctic?

d. Shifts in population dynamics due to changes in prey and predator relationships

a. Decreased population due to ice melt.

b. Increased population due to longer growing seasons.

c. No change, as Arctic species are adapted to cold environments.

A population of organisms that can interbreed and reproduce under natural conditions.

A single organism that can reproduce under natural conditions.

A collection of diverse animals.

Which is an immediate sign that a species is endangered?

It is in immediate jeopardy of extinction throughout a large portion of its range.

It has been introduced to a new habitat.

The evolution of a new species.

What can result from geographic isolation?

Increased trade between populations.

A decrease in species diversity

How does interspecific competition influence species?

It can lead to the dominance of one species over another.

It ensures all species have equal resources.

It prevents species from adapting to new habitats.

It guarantees peaceful coexistence.

Which is a TRUE statement about biodiversity?

It includes species, genetic, and ecological diversity.

It refers only to the number of species.

It is unrelated to the health of ecosystems.

It is always enhanced by introducing non-native species.

How is a biodiversity index calculated?

Number of species ÷ total number of individuals.

Total number of individuals ÷ number of species.

Total biomass of all species ÷ area of the habitat.

Total number of habitats ÷ number of species.

What does a line transect help to measure?

The biodiversity in a specific location.

The number of predators in an area.

The migration patterns of species.

How do invasive species affect biodiversity?

They can decrease biodiversity by outcompeting native species.

They increase genetic diversity.

They generally have limited impact.

They enhance the native species' ability to adapt.

The Endangered Species Act of 1973 is significant because it:

Protects species at risk by placing trade restrictions.

Eliminates all non-native species.

Guarantees funding for habitat restoration.

Provides unlimited protection for all species.

What is an example of mechanical isolation?

Species whose reproductive organs are incompatible.

Species that mate in different seasons.

Species that prefer different types of food.

Temporal isolation occurs when:

Species reproduce at different times.

Species live in different habitats.

Species have different predators.

Species vary in size and shape.

Which statement best represents the principle of competitive exclusion?

One species will outcompete another when resources are limited.

All species have an equal chance of survival.

Two species can coexist without competition.

Cooperation between species enhances biodiversity.

Real-life connection: What role does the Endangered Species Act play in real estate development?

It restricts development in critical habitats.

It promotes the building of more housing projects.

It has no impact on real estate.

It encourages developers to import non-native species.

Real-life connection: How does climate change potentially affect speciation?

It may increase geographic isolation leading to speciation.

It can lead to the merging of species.

Real-life connection: How might a decrease in genetic biodiversity affect agriculture?

It may result in crops that are more susceptible to disease.

It can lead to more robust crop varieties.

It will have no effect on crop production.

It will increase the nutritional value of crops.

Real-life connection: What effect do invasive species often have on water ecosystems?

They can alter food webs and reduce native species' populations.

They clarify water by consuming algae.

They typically increase fish populations.

They have no significant impact.

The arrows on a food web or food chain represent _______________.

the direction in which energy is being transferred

how far away one species is from another

the organism that is being eaten

24-25 Environmental Midterm Review

Authored by Dylan Warren

Science

11th Grade

NGSS covered

Used 15+ times

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96 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1. Population density is calculated by:

a. Counting the number of animals in a space.

b. Knowing the area of that space.

c. Dividing the number of individuals by the area they occupy.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2. A high population density suggests that:

a. The area is underpopulated.

b. The area is overpopulated.

c. The species is endangered.

d. The habitat is expansive.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

3. What does a uniform population dispersion indicate about a species?

a. Low competition over resources.

b. High competition over resources .

c. An aquatic habitat.

d. A migratory pattern.

4. Which type of dispersion is characterized by randomness and solitary living?

a. Uniform

b. Random

c. Clumped

d. Stratified

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

5. Clumped dispersion is often an adaptation against:

a. Predation.

b. Overpopulation.

c. Disease.

d. Inbreeding.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

6. What does an organism's reproductive potential mean?

a. Its birth rate.

b. Its death rate.

c. The maximum number of offspring it can produce.

d. Its likelihood of becoming extinct.

7. Linear growth in a population is characterized by:

a. A constant amount of increase.

b. A doubling pattern.

c. A decrease over time.

d. Fluctuations based on seasons.

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24-25 Environmental Midterm Review

1. Population density is calculated by:

2. A high population density suggests that:

3. What does a uniform population dispersion indicate about a species?

4. Which type of dispersion is characterized by randomness and solitary living?

5. Clumped dispersion is often an adaptation against:

6. What does an organism's reproductive potential mean?

7. Linear growth in a population is characterized by:

8. Exponential growth in a population is characterized by:

9. Limiting factors in an ecosystem:

10. What is the significance of a population's carrying capacity?

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