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Ecosystems

Ecosystems and Relationships

QuestionAnswer
List the order of environmental organization from smallest to largest. Organism, population, community, ecosystem, biosphere.
What is a community of organisms and their abiotic environment called? An ecosystem.
What is a population in an ecosystem? Two or more of the same type of organism living together.
How is a food web different from a food chain? A food web shows more diversity and relationships.
At which level of the energy pyramid is the most energy available? At the producer level.
Which pair of terms could apply to a plant? Autotroph and producer.
Which pair of terms could apply to a deer? Heterotroph and herbivore.
Fungi and bacteria are called what? Decomposers.
What is parasitism? Example: Relationship where one organism benefits and the other organism is harmed. Example: A tick living on a dog.
What is predation? Example: Relationship where one organism, the predator, attacks and eats another organism, the prey. Example: A group of wolves eating a deer.
What is competition? Example: Relationship where organisms compete for similar food, shelter, water, or mates. Example: Two polar bears fighting over a seal.
What is mutualism? Example: Relationship that benefits both organisms involved. Example: A bird that eats bugs off the back of a cow.
What is commensalism? Example: Relationship where one organism benefits and the other is neither harmed or benefits. Example: Birds living in a nest in a tree.
What is population density? The number of organisms per unit of living area.
Community Populations of more than one species living and interacting with each other.
Niche A unique position and function that a species has in an ecosystem.
Created by: cook2sm
Popular Ecology sets

 

 



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