Understanding Population Dynamics in Ecosystems

What type of environment supports thousands of the same species of trees?

• Grassland

• Desert

• Rainforest

• Tundra

What happens to a population when resources are scarce?

• It migrates

• It stabilizes

• It decreases

• It increases

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

• Population threshold

• Environmental limit

• Carrying capacity

• Biotic potential

What directly impacts the carrying capacity of an environment?

• Global temperatures

• Number of humans

• Amount of technology

• Availability of resources

What happens when a population reaches its carrying capacity?

• It migrates

• It stops growing

• It decreases

• It diversifies

Which is not a typical food source for owls?

• Other rodents

• Mice

• Small birds

• Fish

Which factor is NOT a limiting factor for populations?

• Temperature

• Predator numbers

• Plant variety

• Technology

What is an example of an abiotic factor?

• Fungi

• Trees

• Water

• Insects

Which is a biotic factor that could affect a population?

• Air quality

• Sunlight

• Predation

• Soil type

What can cause a population to crash?

• Decrease in predators

• Lower birth rates

• Increase in food

• Natural disasters