Understanding Population Dynamics in Ecosystems

What is a consequence of natural disasters on animal populations?

• Temporary increase

• Improved health

• Long-term stability

• Population decrease

Which is not a typical food source for owls?

• Other rodents

• Mice

• Small birds

• Fish

What is the term for the maximum number of individuals an environment can support?

• Population threshold

• Environmental limit

• Carrying capacity

• Biotic potential

Which is a biotic factor that could affect a population?

• Air quality

• Sunlight

• Predation

• Soil type

What role do predators play in an ecosystem?

• Increase plant growth

• Control prey populations

• Decrease biodiversity

• None

What can cause a population to crash?

• Decrease in predators

• Lower birth rates

• Increase in food

• Natural disasters

What environmental change can increase a population?

• Abundant rain

• Flooding

• Drought

• Heatwaves

Which biome/environment supports thousands of the same species of trees?

• Grassland

• Desert

• Rainforest

• Tundra

What is the effect of high fluoride levels in water on elk?

• Increases their size

• Shortens lifespan due to tooth decay

• Has no effect

• Improves their health

What happens to a population when resources are scarce?

• It migrates

• It stabilizes

• It decreases

• It increases