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Biology > Biosphere and ecosystems > Flashcards

Biosphere and ecosystems Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

Biosphere

A

part of the earth and its atmosphere where living organisms are found

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2
Q

Biosphere consists of:

A

hydrosphere
Lithosphere
Atmosphere

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3
Q

Lithosphere

A

Earths crust, soil and below the Earth’s surface

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4
Q

Atmosphere

A

layer of glasses around the earth

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5
Q

the Hydrosphere consists of

A

oceans, lakes, rivers, underground water and water vapour

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6
Q

Biomes

A

regions of the biosphere that have a certain climate, soil types and types of vegitation

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7
Q

Ecosystems

A

Units in nature in which living and non-living things interact with eachother

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8
Q

Communities

A

All the different types of living organisms living in certain areas

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9
Q

Populations

A

Groups of individuals of the same species living in certain areas

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10
Q

Organisms

A

individual living things

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11
Q

7 Terrestrial Biomes in South Africa

A

Grassland
Savannah
Forest
Nama-Karoo
Succulant-Karoo
Fynbos
Thicket

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12
Q

Aquatic Biomes: Marine Biomes

A

ocean, coral reefs
algea as vegeitation
whales, sharks, dolphins

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12
Q

Aquatic Biomes: Freshwater

A

wetlands, rivers and streams
grasses, water lilies
birds, insects, fish frogs

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13
Q

Biotic Factors

A

all the plants, animals and microorganisms

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14
Q

examples of Abiotic factors

A

light
water
air
temperature
physiographic factors (hight above sea level)

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15
Q

Human Activities that affect the environment

A

Air pollution & global warming
Agriculture
industry & urbanisation
human population growth
Poaching

16
Q

what causes Air pollution & global warming

A

caused by burning of fossil fuels

17
Q

Global warming:

A

increase in global average temperatures, changes habits & rainfall

18
Q

Negative results of
Agriculture

A

Natural habitats are destroyed
water is needed for irrigation
fertilizers pollute water

19
Q

result of industry and urbanisation

A

natural vegeitation is cleared for urbanisation
- destroyed natural habitat

20
Q

Poaching

A

Illegal catching and killing of wild animals
- can lead to extinction of species

20
Q

why is Human population growth bad

A

human population explosion has led to harm of environment
more use of natural resources

21
Q

Ecotourism

A

Responsible travel to natural areas, conserves the environment and
sustains or improves the well being of local people

22
Q

Ecotourism: Opportunities

A

-provides jobs for locals
-locals use natural recources of area
-money spent by travellers benefit locals

Biology (7 decks)

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