Ecosystem Interactions and Feedback Worksheet

Which is an example of dynamic equilibrium in nature?

• All species go extinct

• Predator and prey populations balance over time

• Rain never falls

• Volcanoes erupt constantly

Which factor helps ecosystems be more resilient?

• High biodiversity

• Extreme pollution

• Soil erosion

• Human overuse

Which of these is NOT a process in the water cycle?

• Evaporation

• Condensation

• Fixation

• Precipitation

What are the four Earth spheres?

• Lithosphere, biosphere, atmosphere, hydrosphere

• Rocks, plants, cities, water

• Core, mantle, crust, ozone

• Animals, cars, roads, air

Which organisms form the base of most food chains?

• Carnivores

• Decomposers

• Herbivores

• Producers

Which is an example of a secondary consumer?

• Grass

• Rabbit

• Fox

• Fungus

Humans can affect all four spheres in which of the following ways?

• By polluting air, water, soil, and impacting living things

• By only using renewable resources

• By avoiding all technology

• By never interacting with nature

How do humans add carbon dioxide to the atmosphere?

• Through industry and pollution

• By breathing

• By walking

What makes an ecosystem vulnerable?

• High biodiversity

• Ability to recover

• Human impacts and low diversity

• Deep roots

What is a feedback loop in an ecosystem?

• Something that plays music

• A repeating cycle that affects balance

• A type of pollution

• Weather pattern