Enviromental Science

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Population

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54 Terms

1

Population

all the inhabitants of a particular town, area, or country

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2

Community

a group of people living in the same place or having a particular characteristic in common

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3

Producer

Beginning of ecosystem that supports consumers

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4

Autotroph

an organism that can form nutritional organic substances from simple inorganic substances such as carbon dioxide

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5

Consumer

An organism in the ecosystem that will either feed on other organisms or producers

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6

Heterotroph

an organism deriving its nutritional requirements from complex organic substances

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7

Herbivore

an animal that eats only plants

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8

Carnivore

an animal that feeds on flesh

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9

Omnivore

an animal or person that eats food of both plant and animal origin

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10

Decomposer

an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material

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11

Biomass

the total mass of organisms in a given area or volume

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12

Food web

consists of all the food chains in a single ecosystem

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13

Food chain

a hierarchical series of organisms each dependent on the next as a source of food

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14

Trophic Level

each of several hierarchical levels in an ecosystem, comprising organisms that share the same function in the food chain and the same nutritional relationship to the primary sources of energy

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15

Biotic Factor

Living Organisms

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16

Abiotic Factor

non-Living organisms

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17

Habitat

The environment in which animals and plants live in an ecosystem

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18

Prey

animals that are hunted

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19

Carrying Capacity

the average population for organisms in an area

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20

Symbiotic

involving interaction between two different organisms living in close physical association

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21

Mutualism

symbiosis that is beneficial to both organisms involved

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22

Commensalism

One organism benefits while the other is not benefited but is unharmed

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23

Parasitism

one organism is benefited while the other isnt and is harmed

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24

Predation

the preying of one animal on others

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25

Competition

the relationship between organisms that strive for the same resources in the same place

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26

Photosynthesis

the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water

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27

Population

all the inhabitants of a particular town, area, or country.

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28

Community

a group of people living in the same place or having a particular characteristic in common.

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29

Producer

Beginning of ecosystem that supports consumers

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30

Autotroph

an organism that can form nutritional organic substances from simple inorganic substances such as carbon dioxide.

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31

Consumer

An organism in the ecosystem that will either feed on other organisms or producers

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32

Heterotroph

an organism deriving its nutritional requirements from complex organic substances.

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33

Herbivore

an animal that eats only plants

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34

Carnivore

an animal that feeds on flesh.

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35

Omnivore

an animal or person that eats food of both plant and animal origin.

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36

Decomposer

an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.

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37

Biomass

the total mass of organisms in a given area or volume.

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38

Limiting factors

anything that constrains a population's size and slows or stops it from growing

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39

Food web

consists of all the food chains in a single ecosystem

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40

Food chain

a hierarchical series of organisms each dependent on the next as a source of food

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41

Trophic Level

each of several hierarchical levels in an ecosystem, comprising organisms that share the same function in the food chain and the same nutritional relationship to the primary sources of energy.

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42

Biotic Factor

Living Organisms

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43

Abiotic Factor

non-Living organisms

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44

Habitat

The environment in which animals and plants live in an ecosystem

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45

Predators

animals that prey/hunt others

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46

Prey

animals that are hunted

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47

Carrying Capacity

the average population for organisms in an area

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48

Symbiotic

involving interaction between two different organisms living in close physical association

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49

Mutualism

symbiosis that is beneficial to both organisms involved

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50

Commensalism

One organism benefits while the other is not benefited but is unharmed

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51

Parasitism

one organism is benefited while the other isn't and is harmed

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52

Predation

the preying of one animal on others

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53

Competition

the relationship between organisms that strive for the same resources in the same place

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54

Photosynthesis

the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water

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