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E.S. Ch. 4 vocab

Chapter 4 Vocabulary Practice Terms

An interaction between 2 or more individuals for the same resources. competition
The study of the way organism interact with each other in their surroundings. ecology
Nonliving factors in the environment. abiotic factors
An organism that only consumes other animals. carnivore
Intersecting and overlapping food chains. food web
A parasite that is adapted to live within a host. endoparasite
Favorable characteristics passed on that change an organism over time to make them more adapted to their region. evolution
These cause the decay of organic matter and recycle nutrients. Ex. Bacteria and Fungus decomposer
An accumulation of organic material produced by living things. biomass
Identifiable region in which a particular kind of organism lives. habitat
The death of a species-total elimination. extinction
Interacting groups of different species. community
Organism adapted to live on the outside of its host. ectoparasite
Cyclic flow of carbon from the atmosphere to living organisms and back. carbon cycle
Bacteria that converts nitrogen compound into nitrogen gases. denitirifying bacteria
Living organisms in an environment. biotic factors
Eat plants and is considered a primary consumer. herbivore
A series of organisms involved in the passage of energy from one trophic level to the next. food chain
Everything that effects an organism in its lifetime. environment
Organisms that rely on other organisms for food. consumer
A group of interacting species and the physical environment around them. ecosystem
Relationship where one organism benefits and the other is not affected. commensalism
Organic material that results from fecal waste material or the decomposition of plants and animals. detritus
Bacteria living in the soil and can convert nitrogen gas in the atmosphere into forms plants can use. Free-living Nitrogen fixing bacteria
An organism that lives in or on another organism. parasite
Population of organisms who can interbreed and produce fertile offspring. species
Shortage or absence of a key factor restricts the success of the species. limiting factors
The functional role of an organism in its surroundings. niche
These organisms make new, complex, organic material from the atoms in the environment. producers
Bacteria that are able to convert the nitrogen gas in the atmosphere. nitrogen-fixing bacteria
Each step in the flow of energy through an ecosystem. trophic level
Where parasites get their nourishment. host
Competition between members of the same species. intraspecific competition
Close, long lasting, physical relationship between two different species. symbiosis
The flow of nitrogen atoms through organisms in an ecosystem. nitrogen cycle
Competition between members of a different species. interspecific competition
A relationship between two organisms where both are benefitted. mutualism
Production of a new species from a previously existing species. speciation
Process of more successful individuals surviving and reproducing large numbers of offspring over time. natural selection
These organisms get their nutrition by eating plants. They are also known as Herbivores. primary consumers
An animal that hunts for its prey for food. predators
This is a relationship between two organisms where one organism benefits at the expense of another. parasitism
An organism that not only eats plants but animals as well. omnivore
These consumers eat primary consumers and some will eat producers. secondary consumers
These organisms are fed upon by predators. prey
Bacteria that lives in nodules in the roots of plants known as legumes. symbiotic nitrogen-fixing bacteria
The ability of an organism to succeed under a variety of environmental conditions. range of tolerance
Created by: rburrier