Levels of Organization
Energy Transfer in Ecosystems
Community Interactions and Limiting Factors
Succession and Biodiversity
Picture This
100
The smallest level of organization studied in Ecology.
What is organism?
100
The green plants, algae and bacteria that make their own food in an ecosystem.
What are producers?
100
An interaction in which one organism captures and feeds on another.
What is predation?
100
The type of succession that occurs slowly, over hundreds or thousands of years.
What is primary succession?
100
The kangaroo rat, grasshopper and rabbit in this food web.
What are primary consumers?
200
A group of organisms all from the same species.
What is a population?
200
Organisms that eat to obtain energy.
What are consumers?
200
When members of the same community struggle for the same resources.
What is competition?
200
The type of succession that occurs quicker. It only takes about 50 years.
What is secondary succession?
200
Squirrels collect acorns and provide food to larger predators. This is an example of the squirrels _____.
What is niche?
300
The non-living parts of an ecosystem.
What are abiotic factors?
300
An organism that breaks down organic materials and returns the essential nutrients to the environment.
What are decomposers?
300
When both organisms benefit from the relationship.
What is mutualism?
300
The species that are the first to colonize newly created environments.
Pioneer species
300
The carrying capacity of the species in the line graph below.
What is 2,000?
400
A defined area that includes a community and the non-living parts of the area.
What is an ecosystem?
400
A complex model that links all of the food chains in an ecosystem. It is a more accurate representation of energy flow than a food chain.
What is a food web?
400
When one organism benefits but the other is not affected.
What is commensalism?
400
The type of succession that occurs after a wildfire.
What is secondary succession?
400
An example of this is a spotted lantern fly. These are non-native organisms that damage the local ecosystem.
What is an invasive species?
500
The 6 major biomes on Earth.
What are deciduous forest, rainforest, desert, grassland, tundra, and coniferous forest.
500
The rule that states the amount of energy transferred between trophic levels in ecosystems.
What is the 10% rule?
500
An abiotic or biotic factor that restricts the existence, numbers, reproduction or distribution of organisms.
What is a limiting factor?
500
The variety of species living in an area.
What is biodiversity?
500
Food Web A has more of this than food web B.
What is biodiversity?