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Enviro science exam revision > Biotic factor > Flashcards

Biotic factor Flashcards

A living component in an ecosystem.

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

Abiotic Factor

A

Non-living component of an ecosystem. Temperature

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2
Q

Population

A

The number of organisms of the same species that live in the same area at the same time.

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3
Q

Ecological community

A

The different species that interact within a specific location.

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4
Q

Biotic factor

A

Living component of an ecosystem. Tiger

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5
Q

Inputs, processes and output

A

Input: fuels a process
Process: Any movement, energy transfer or interaction within a system.
Output: result of process

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6
Q

Carbon cycle

A

photosynthesis, respiration, burning fossil fuels, ocean surface, sinking

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7
Q

Nitrogen cycle

A

Denitrification, nitrogen fixation, ammonia

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8
Q

stakeholders

A

A person who has a view/position in a project going ahead

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9
Q

Anthropocentric

A

Views humans as the most important species.

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10
Q

Ecocentric

A

Value humans and all other living organisms as fairly equal

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11
Q

Technocentric

A

Value ai/robots as the most important

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12
Q

Photosynthesis

A

Carbon is drawn in by plants and used as carbohydrates

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13
Q

Cellular respiration

A

carbon is breathed out by organisms

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14
Q

Nitrogen fixation

A

When microbes or lightening convert nitrogen into usable compounds in the soil.

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15
Q

Food chain/web

A

shows flow of food as a diagram

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16
Q

Lithosphere

A

Land, rocks, soil

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17
Q

Biosphere

A

Living things

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18
Q

Hydrosphere

A

Water

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19
Q

Atmosphere

A

The layer of gases surrounding the earth.

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20
Q

Layers of atmosphere

A

Troposphere, stratosphere, mesosphere and thermosphere

21
Q

Primary succession

A

When species become established on an unvegetated surface

22
Q

Secondary succession

A

When new species colonise an area that had already supported a biological community but has undergone change, such as deforestation.

23
Q

What system is earth?

A

closed system

24
Q

How much sun energy do the poles receive?

A

$0%

25
Q

Sedimentary rock

A

Forms from the deposits of eroded rock and compacts.

26
Q

Igneous rock

A

Formed from the cooling of molten rock

27
Q

Metamorphic rock

A

When igneous or sedimentary rocks undergo changes due to heat and pressure

28
Q

carbon capture method

A

carbon is captured from the atmosphere and permanently stored underground

29
Q

water desalination

A

treating water multiple times until it can be used again

30
Q

water reclamation

A

Reusing and treating water that was once unusable.

31
Q

List all short-term changes

A

Day and night
Lunar cycles
Seasons

32
Q

List 2 medium-term changes

A

ecological succession
drought

33
Q

List one long-term change

A

evolution

34
Q

La-Nina

A

colder temperatures, high rainfall

35
Q

El-Nino

A

warmer temperatures, less rainfall

36
Q

crepuscular, provide example

A

organisms that are more active at dusk and dawn. kangaroo

37
Q

diurnal, provide example

A

organisms that are more active during the day. kookaburra

38
Q

nocturnal, provide example

A

organisms that are more active during the night. owl

39
Q

ecology

A

The study of ecosystems

40
Q

biomes

A

A large region of earth that has a certain climate and certain types of living things. e.g. tundra

41
Q

paleoclimatology

A

The study of previous climates

42
Q

Open system

A

Exchange energy and matter

43
Q

Closed system

A

Exchange energy but not matter

44
Q

Benefits of water

A
  • good solvent
    -high heat capacity
    -it flows
45
Q

infrared

A

Heat on the surface of earth

46
Q

ultraviolet

A

Harmful radiation heat which only a small proportion passes through the stratosphere

47
Q

greenhouse gases

A

Gases which are trapped in the troposphere.

48
Q

circadian rhythm

A

the physical, mental and behavioural changes over a 24-hour period.

Enviro science exam revision (5 decks)

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