Shared Flashcard Set

Details

Ecology
chapter 4,5,and 6
38
Biology
9th Grade
04/15/2013

Additional Biology Flashcards

 


 

Cards

Term
community
Definition
a group of various species that live in the same habitat and interact with each other.
Term
ecosystem
Definition
a community of organisms and their abiotic environment.
Term
habit
Definition
where organisms live.
Term
bio diversity
Definition
the variety of organisms in a given area, the genetic variation within a population, the variety of species in a community, or the variety of communities in an ecosystem.
Term
succession
Definition
the replacement of one type of community by another at a single location over a period of time.
Term
climate
Definition
the average weather conditions in an area over a long period of time.
Term
boime
Definition
a large region characterized by a specific type of climate and certain types of plant and animal communities.
Term
producer
Definition
makes their own food.
Term
consumer
Definition
eats other organisms for food.
Term
decomposer
Definition
eats dead animals.
Term
trophic level
Definition
one of the steps in a food chain or food pyramid; examples include producers and primary, secondary, and tertiary consumers.
Term
energy pyramid
Definition
a triangular diagram that shows an ecosystem's loss of energy, which results as energy passes through the ecosystem's food chain; each row in the pyramid represents a trophic (feeding) level in an ecosystem, and the area of a row represents the energy stored in that trophic level.
Term
carbon cycle
Definition
the movement of carbon from the nonliving environment into living things and back.
Term
respiration
Definition
the exchange of oxygen and carbon dioxide between living cells and their environment; includes breathing and cellular respiration.
Term
nitrogen cycle
Definition
the cycling of nitrogen between organisms, soil, water, and the atmosphere.
Term
phosphorus cycle
Definition
the cyclic movement of phosphorus in different chemical forms from the environment to organisms and then back to the environment.
Term
population
Definition
organisms of the same species that live in the same time and interbreed.
Term
carrying capacity
Definition
the largest population that an environment can support at any given time.
Term
Predation
Definition
an interaction between two organisms in which one organism, the predator, kills and feeds on the other organism, the prey.
Term
coevolution
Definition
the evolution of two or more species that is due to mutual influence, often in a way that makes the relationship more mutually beneficial.
Term
parasitism
Definition
a relationship between two species in which one species, the parasite, benefits from the other species, the host, which is harmed
Term
symbiosis
Definition
a relationship in which two different organisms live in close association with each other.
Term
mutualism
Definition
a relationship between two species in which both species benefit.
Term
commensalism
Definition
a relationship between two organisms in which one organism benefits and the other is unaffected.
Term
niche
Definition
the unique position occupied by a species, both in terms of its physical use of its habitat and its function within an ecological community.
Term
fundamental niche
Definition
the largest ecological niche where an organism or species can live without competition.
Term
realized niche
Definition
the range of resources that a species uses, the conditions that the species can tolerate, and the functional roles that the species plays as a result of competition in the species' fundamental niche.
Term
competitive exclusion
Definition
the exclusion of one species by another due to competition.
Term
keystone species
Definition
a species that is critical to the functioning of the ecosystem in which it lives because it affects the survival and abundance of many other species in its community.
Term
fossil fuel
Definition
a nonrenewable energy resource formed from the remains of organisms that lived long ago; examples include oil, coal, and natural gas.
Term
acid rain
Definition
precipitation that has a pH below normal and has an unusually high concentration of sulfuric or nitric acids, often as a result of chemical pollution of the air from sources such as automobile exhausts and the burning of fossil fuels.
Term
global warming
Definition
a gradual increase in average global temperature.
Term
greenhouse effect
Definition
the warming of the surface and lower atmosphere of Earth that occurs when carbon dioxide, water vapor, and other gases in the air absorb and reradiate infrared radiation.
Term
deforestation
Definition
clearing forest.
Term
biodiversity
Definition
the variety of organisms in a given area, the genetic variation within a population, the variety of species in a community, or the variety of communities in an ecosystem.
Term
extinction
Definition
the death of every member of a species.
Term
recycling
Definition
the process of recovering valuable or useful materials from waste or scrap; the process of reusing some items.
Term
ecotourism
Definition
a form of tourism that supports the conservation and sustainable development of ecologically unique areas.
Supporting users have an ad free experience!