UNITY TEST 5 STUDY GUIDE Flashcards

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1
Q

Ecology

A

The study of interactions between organisms and the living and nonliving components of their environment

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2
Q

What are the levels of life

A
Biosphere
Ecosystem
Community
Population 
Organism
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3
Q

Interdependence

A

All organisms depend on one another to survive through interactions

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4
Q

Ecological models

A

A representation of the components of an ecological system

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5
Q

Biosphere

A

The most inclusive level of life, sorounds in the atmosphere

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6
Q

Ecosystems

A

The smaller units of the biosphere including all organisms and the non living environment found in a particular place

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7
Q

Communities

A

All of the interacting organisms living in an area, specifically in an ecosystem

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8
Q

Population

A

Including all members of one species that live in an ecosystem

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9
Q

Organism

A

The individual organism in a population

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10
Q

Habitat

A

The place where an organism lives

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11
Q

Niche

A

The way of life of a species in its environment

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12
Q

Abiotic Factors

A

Non-living components of an environment

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13
Q

Biotic Factors

A

Living components of an environment

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14
Q

Consumers

A

All animals who consume other organisms or organic wastes

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15
Q

Producers

A

Organisms that produce their own food (Plants)

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16
Q

Carnivores

A

Animals that eat other consumers

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17
Q

Herbivores

A

Animals that eat plants

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18
Q

Detritivores

A

Animals that feed off of the garbage in an environment

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19
Q

Omnivores

A

Animals that eat both plants and animals

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20
Q

.Biomass

A

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

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21
Q

Carbon cycle

A

The recycling of carbon in the environment

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22
Q

Nitrogen cycle

A

The cycle of nitrogen being recycled throughout the environment

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23
Q

Nitrogen fixation

A

The process of converting N2 gas to nitrate

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24
Q

Trophic levels

A

Indication of the organism’s position in a sequence of energy transfers

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25
Q

Biogeochemical cycles

A

Non living substances passing through the environment

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26
Q

Water cycle

A

The cycle in which water evaporates and returns to the environment

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27
Q

Phosphorus cycle

A

The movement of Phosphorus from environment to organisms and then back to the environment (Phosphorus is essential to form bones, teeth, and parts of molecules such as DNA and RNA )

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28
Q

Carrying Capacity

A

the number of people, other living organisms, or crops that a region can support without environmental degradation

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29
Q

How many people live in developing countries

A

80 percent

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30
Q

How many people live in developed countries

A

20 percent

31
Q

Animal and plant adaptations

A

Natural adaptations of animals and plants to help them survive

32
Q

Interspecific competition

A

A type of interaction in which two or more species use the same limited recourse

33
Q

Competitive exclusion

A

When two organisms have control over one resource or share one resource

34
Q

Parasitism

A

When one organism benefits while the other is harmed

35
Q

Mutualism

A

Both organisms benefit

36
Q

Symbiosis

A

A close long term relationship between two organisms.

37
Q

Commensalism

A

One organism benefits but the other organsim is neither helped nor harmed

38
Q

Primary succession

A

The development of a community in an area that has not supported life previously

39
Q

Secondary Succession

A

The sequential replacement of species that follows disruption of an existing community

40
Q

Climax community

A

The final sustainable community

41
Q

Pioneer species

A

The species or organisms that predominate early in succession

42
Q

Biome

A

Very large climatic regions that contain a number of smaller but related ecosystems within them

43
Q

Earth’s Layers

A
Crust 
Upper Mantle 
Mantle
Outer Core
Core
44
Q

Biodiversity

A

the variety of life in the world or in a particular habitat or ecosystem.

45
Q

Tundra

A

A cold treeless biome characterized by Permafrost (A permanent frozen layer of soil under the surface

46
Q

Taiga

A

A forested biome dominated by coniferous trees and characterized by long winters and short summers

47
Q

Temperate Forest

A

Forests that occur in eastern North America and central Europe and are characterized by distinct seasons and moderate climates and coniferous tress and deciduous trees

48
Q

Tropical Forest

A

Forests that occur near the center of the equator and are some of the most biologically diverse biomes on the planet, characterized by rainy seasons and dry seasons

49
Q

Temperate Grasslands

A

Grasslands that are too dry to support trees and are characterized by dry climates

50
Q

Savana

A

Tropical or temperate grasslands that have scattered deciduous trees and shrubs

51
Q

Desert

A

Biomes characterized by rolling sand dunes and almost no trees

52
Q

Chaparral

A

A biome that is dominated by dense spiny shrubs and has scattered clumps of coniferous trees

53
Q

Photic

A

The part of the ocean that recieves sunlight is the photic zone

54
Q

Aphotic

A

The zone where sunlight cannot penetrate and photosynthesis is no longer possible

55
Q

Benthic

A

The ocean bottom

56
Q

Pelagic

A

the open ocean

57
Q

Intertidal zone

A

The point where the ocean meets land

58
Q

Neritic zone

A

the neritic zone is the most productive zone in the ocean and is located in mostly shallow water where photosynthesis is possible

59
Q

Oceanic

A

The oceanic zone encompasses the deepest parts of the ocean zone an d contains few specie than the neritic zone does

60
Q

Estuaries

A

A mix of salt and freshwater

61
Q

Eutrophic Lakes

A

Freshwater bodies of water and are rich in organic matter and vegetation

62
Q

Oligotrophic lakes

A

Contain little organic matter and the water is much clearer

63
Q

Rivers/streams

A

A body of freshwater that flows down a gradual slope

64
Q

Wetlands

A

Areas of land that are covered with freshwater for at least part of each year

65
Q

Extinction

A

The death of every member in a species

66
Q

Endangered

A

In threat of extinction

67
Q

Biological Magnification

A

The rising threat of a chemical the farther up it moves in the food chain

68
Q

Keystone species

A

A species that effects many others

69
Q

Bioindicator

A

Animals that are very sensitive to biological change

70
Q

Chlorofluorocarbons

A

CFS, destructive chemicals that affect the ozone

71
Q

Smog

A

Water mixed with chemicals

72
Q

Pollution

A

Substances that harm the environment

73
Q

Biodiversity hotspots

A

Regions that contain 44 percent of all species of vascular plants and 35 percent of other four groups of invertebrates