Levels of Organization
Population & Resources
Ecosystem Interactions
Ecological Succession
Human Impact & Changes
100

What is the smallest level of organization in an ecosystem?

What is an individual?

100

What are factors like food, water, and space that limit population growth?

What are limiting factors?

100

What type of relationship benefits both species?

What is mutualism?

100

What is the process of ecosystem change over time?

What is ecological succession?

100

What are events like fires and floods called?

What are natural disruptions?

200

What do you call a group of the same species living in one area?

What is a population?

200

What is the maximum population an environment can support?

What is carrying capacity?

200

What relationship involves one organism benefiting and the other being harmed?

 What is parasitism?

200

What type of succession begins with no soil?

What is primary succession?

200

What human activity removes trees and habitats?

What is deforestation?

300

What level includes all different species living together?

What is a community?

300

What term describes the highest possible population growth under ideal conditions?

What is biotic potential?

300

What is it called when one benefits and the other is unaffected?

What is commensalism?

300

What type of succession occurs where soil already exists?

What is secondary succession?

300

What is nutrient pollution in water that causes algal blooms?

What is eutrophication?

400

What includes both living and nonliving things in an area?

What is an ecosystem?

400

What happens when a population exceeds carrying capacity?

What is overpopulation?

400

What interaction involves organisms competing for the same resources?

What is competition?

400

What are the first organisms to grow in primary succession?

 What are pioneer species?

400

What type of species disrupt ecosystems by competing with native species?

What are nonnative (invasive) species?

500

What is the largest level that includes all life on Earth?

What is the biosphere?

500

What is it called when a species completely disappears?

What is extinction?

500

What relationship helps control population size by hunting?

What is predator-prey?

500

 What is the final stable stage of succession called?

What is a climax community?

500

What is the overall effect of human activity on ecosystems?

What is reduced biodiversity and ecosystem instability?

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