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Ecology Vocabulary Flash Cards
Biology in 7th grade Science
32
Science
7th Grade
05/08/2011

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Term
Biotic
Definition
Living things.
(you,plant,bacteria)
Term
Abiotic
Definition
Non-living things. (sunlight,temperature,water,air)
Term
Niche
Definition
A specific organism's habitat and lifestyle.
(the role it plays in its environment)
Term
Predator
Definition
Eats prey.
(lion)
Term
Prey
Definition
Eaten by a predator.
(gazelle,mouse)
Term
Mutualism
Definition
Relationship in which both organisms benefit.
(+,+);Bee,and flower
Term
Parasitism
Definition
Relationship in which one organism benefits and one is harmed.
(+,-);tapeworm,and dog
Term
Commensalism
Definition
Relationship in which one organism is helped while the other is neither helped nor harmed.
(+,0);moss on a tree
Term
Symbiosis
Definition
Relationship between two different species and at least one benefits.
Term
Limiting factors
Definition
Things that limit the size of a population.
(climate,food,predation,space)
Term
Carrying capacity
Definition
Maximum number of organisms an environment can support.
Term
Producer
Definition
Makes sugar (C6H12O6) for food through photosynthesis;
autotroph (plants,algae)
Term
Consumer
Definition
Must eat others for food;
heterotroph (mouse,human)
Term
Decomposer
Definition
Breaks down and recycles other organisms.
(bacteria,fungus)
Term
Trophic level
Definition
Level on an energy pyramid.
(producers,primary consumers...)
Term
Herbivore
Definition
Only eats.
(rabbit)
Term
Carnivore
Definition
Only eats meat.
(lion)
Term
Omnivore
Definition
Eats plants and meat.
(bear)
Term
Autotroph(ic)
Definition
Organism that can make its own food.
(plants)
Term
Heterotroph(ic)
Definition
Organism that must eat.
Term
10% rule
Definition
Only 10% of energy moves up each trophic level.
Term
Population
Definition
All members of one species in a particular area.
Term
Community
Definition
All the different populations that live together in an area.
Term
Ecosystem
Definition
All the living and nonliving things that interact in an area.
Term
Parasite
Definition
An organism that benefits by living on or in a host in parasitism.
Term
Host
Definition
The organism that a parasite lives in or on in parasitism.
Term
Food web
Definition
The pattern of overlapping food chains in an ecosystem.
Term
Food web
Definition
A series of events on which one organism eats another.
Term
Ecology
Definition
The study of how living things interact with each other and their environment.
Term
Extinction
Definition
The disappearance of all members of a species from Earth.
Term
Interact
Definition
To act upon or to influence something.
Term
Energy pyramid
Definition
A diagram that shows the amount of energy that moves from one feeding level to another in a food web.
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