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Ecosystem Unit

Ecology terms from the Environmental Science book

QuestionAnswer
All of the living parts of the ecosystem biotic factors
The nonliving parts of the ecosystem abiotic factors
The smallest unit of ecological organization organism
The behaviors and physical characteristics of species that allow them to live successfully in their environment adaptations
The struggle between organisms to survive in a habitat with limited resources competition
A close relationship between two species that benefits at least one of the species symbiosis
An Interaction in which one organism kills and eats another. predation
The study of how things interact with each other and with their environment ecology
When a flea lives on a dog, the dog is the host
Mutualism, commensalism,and parasitism are the three types of symbiotic relationships.
Consumers that eat both plants and animals omnivores
The many overlapping food chains in an ecosystem food web
A diagram that shows the amount of energy that moves from one feeding level to another in a food web energy pyramid
The first species to populate an area where primary succession is taking place pioneer species
An organism that can make its own food producer
An organism that feeds on the bodies of dead organisms scavengers
The type of succession that occurs in an area where no ecosystem previously existed primary succession
Bacteria and fungi break down the remains of organisms. They are known as decomposers
The type of succession that occurs in an area where an ecosystem previously existed secondary succession
All the members of one species in a particular area. population
All of the different populations in a particular area. community
One organism lives in or on the other and harming it. Parasite-host. parasitism
Role or job of the organism in its environment. niche
place where an organism gets it’s food, water, shelter, and all the things it needs to live, grow, and reproduce. habitat
Created by: crumsey
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