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WorksheetsUnderstanding Population Dynamics in Ecosystems
Total questions: 2
Worksheet time: 13mins
1-13.
Answer the questions below after watching the video
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
How did the reintroduction of wolves affect the elk population in Yellowstone?
Drove the elk out of the park
Caused a decrease in the elk
No change to the elk population
Increased the elk population significantly
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 immigrates to a more successful area
resources become scarce and it may stop increasing
It crashed back to approx half
It diversifies it's limiting factors
Choose the area of the graph where you'd expect to find the approximate carrying capacity for this population
