UNIT 3 TEST ECOLOGY
Terms
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- producer
- organism that makes its own food
- niche
- organism's role, or job, in its habitat
- decomposer
- organism that breaks down the wastes or remains of other organisms
- climax community
- last community in a succession
- population
- group of the same kind of organism living in a certain place
- transport
- process of moving nutrients and wastes in a living thing
- environment
- everything that surrounds a living thing
- organism
- any living thing
- range
- area where a type of animal or plant population is found
- respiration
- process of getting energy from food
- conservation
- wise use of natural resources
- biotic
- living
- cell
- basic unit of structure and function in living things
- nonrenewable resource
- materials found in nature that CANNOT be renewed or replaced
- ecosystem
- living and nonliving things in an environment, together with their interactions
- consumer
- organisms that obtain food by eating other organisms
- nitrogen-fixing bacteria
- bacteria that can use nitrogen in soil to make nitrogen compounds
- response
- reaction to a change
- homeostasis
- the ability of a living thing to keep conditions inside its body constant
- ecology
- the study of living things and their environments
- succession
- gradual change in organisms that occurs when the environment changes
- biome
- large region of the earth with particular plant and animal communities
- pollution
- release of harmful materials into the environment
- biosphere
- thin zone of the earth that supports all life
- community
- all populations that live in a certain place
- abiotic
- non-living
- prey
- animal hunted or caught for food
- carrying capacity
- largest amount of a population that can be supported by an area
- natural resource
- materials found in nature that are used by living things
- digestion
- process of breaking down food so that it can be used by living things
- limiting factors
- conditions in the environment that put limits on where an organism can live
- food chain
- way of showing the food relationships among a group of organisms
- endangered species
- kinds of living things that are in danger of dying out
- climate
- overall weather in an area over a long period of time
- interact
- to act upon eachother
- excretion
- process of getting rid of wastes
- scavenger
- animal that eats only dead organisms
- ingestion
- process of taking in food
- energy pyramid
- way of showing how energy moves through a food chain
- food web
- way of showing how food chains are related
- cycle
- something that happens over and over in the same way
- renewable resource
- natural resouces that CAN be renewed or replaced
- environment
- Everything that surrounds a living thing
- Adaptation
- trait of a living thing that helps it live in its environment
- predator
- animal that hunts and eats other animals
- habitat
- place where an organism lives