Food Chain And Webs

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abiotic factors

Back 1

Nonliving things in the environment including water, oxygen, light, temperature, soil and inorganic and organic nutrients

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autotrophs

Back 2

plants and other organisms that make their own food from inorganic substances

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bacteria

Back 3

unicellular microorganisms

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biological magnification

Back 4

the accumulation of substances in larger and larger quantities in the bodies of organisms at each higher trophic levels of a food chain

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biosphere

Back 5

the portion of the earth in which living things can exist

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biotic factors

Back 6

all the living organisms in the environment and their effects on other living things

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carnivore

Back 7

an animal that eats only other animals

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chlorophyll

Back 8

green material in green plants that allows the plant to use sunlight to make its food; the major photosynthetic pigment of plants and algae

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commensalism

Back 9

a type of symbiotic relationship in which one organism benefits from the association and the other is not affected

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community

Back 10

all the populations of different organisms with a given area

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consumer

Back 11

an organism that obtains food by eating other organisms

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decomposer

Back 12

an organism that obtains its food by breaking down dead organisms into simpler substances, thus returning important minerals to the soil and water.

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ecology

Back 13

the branch of biology that deals with the interactions among organisms and between organisms and their environment

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ecosystem

Back 14

a community and its physical environment; in an ecosystem, both the biotic and abiotic factors are included.

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environment

Back 15

everything in the surroundings that affects the way an organism grows, lives and behaves

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food chain

Back 16

a series of organisms that feed on one another

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food web

Back 17

many overlapping series of organisms that feed on one another

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fungi

Back 18

group of simple organisms that have no chlorophyll and must get food from other organisms

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habitat

Back 19

a particular part of the environment in which an organisms lives

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herbivore

Back 20

an animal that eats only plants

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heterotrophs

Back 21

the organisms that cannot make their own food and must obtain it ready made

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mutualism

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a type of symbiotic relationship in which both organisms benefit from the association

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niche

Back 23

the role of a species in an ecosystem; an organism's habitat is part of its niche, but also included are how, when and where it obtains its nutrients, its reproductive behavior, and its effects on environment and on other species within the ecosystem

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omnivore

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an animal that eats both plants and animals

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organism

Back 25

a living thing

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parasitism

Back 26

a symbiotic relationship in which one organism benefits from the association and the other is harmed

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predator

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organism that captures and feeds on prey

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prey

Back 28

organism that is captured and eaten by another organism

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producer

Back 29

an organism that makes its own food

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photosynthesis

Back 30

process in which green plants use the sun's energy to combine with carbon dioxide from the air with water to produce food.

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population

Back 31

all individuals or a particular species within a certain area

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species

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a group of organisms that are structually similar and that can pass on these similarities to their offspring

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symbiosis

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a relationship between two different species that live in close association with one another which benefits at least one of the organisms

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trophic (or energy) pyramid

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representation of the flow of energy from one group of organisms to another

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trophic (or feeding) level

Back 35

location of an organism along a food chain or web