L30 Global Climates and Biomes Flashcards

1
Q

what is the driving force of energy flow in an ecosystem?

A

the sun

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2
Q

what are producers?

A

they capture and utilise sun’s energy to build biomes

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3
Q

name the 3 types of consumers

A

omnivores, carnivores and herbivores

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4
Q

what is ecology?

A

the study of interactions between organisms and their environment

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5
Q

what is sustainability?

A

the act of meeting the needs of the present without compromising the ability of future generations to meet their own needs

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6
Q

how many UN sustainability goals are there ?

A

17

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7
Q

what is the circle of reliance?

A

environment supports society, society supports economy and the economy supports everyone

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8
Q

what sustainability goals are relevant to the biosphere?

A

1) Life below water
2) Life on land
3) Climate Action
4) Clean water and sanitation

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9
Q

how do minerals build up in soil?

A

eathering of bedrock

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10
Q

what does biome mean?

A

a characteristic assemblage of plants and animals that develops upon a defined climatic template that is typical of broad geographic regions

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11
Q

What biomes can you find along the equator?

A

tropical forest, savanna, temperate grassland

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12
Q

what biomes can you find 30 degrees south of equator?

A

savanna, temperate grassland, desert

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13
Q

what biomes can you find over 40 degrees north of equator?

A

temperate deciduous forest, coniferous forest, tundra

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14
Q

what is the relationship between climate and animals?

A

climate dictates vegetation

vegetation dictates animal population

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15
Q

what biome shows greatest range in temperature and precipitation?

A

temperate forest

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16
Q

what biome lowest range in temperature and precipitation?

A

temp - tundra

precipitation - desert

17
Q

why does solar energy vary with latitude of earth?

A

spherical shape of earth results in an uneven distribution with respect to latitude

18
Q

why do day lengths vary according to the position of earth?

A

sun is at an angle

19
Q

why do temperature and precipitation vary according to global position?

A

pattern of movement of air masses

20
Q

why do we get high rainfall near the equator?

A

due to high heat, water rises and evaporates, when high in air it cools and condenses forming rain

21
Q

where does most precipitation occur?

A

at equator, 0 degrees

22
Q

where in relation to the equator is most dry due to the evaporation of water in air?

A

30 - 23.5 degrees N and S of equator

23
Q

what happens in low pressure areas?

A

air rises and releases moisture as precipitation

24
Q

what happens in high pressure areas?

A

descending air absorbs moisture creating arid conditions

25
Q

where do you expect high pressure?

A

30 - 23.5 degrees N and S of equator

26
Q

where do you expect low pressure?

A

nearest the equator, 0 degrees

27
Q

what abiotic factor influences biome temperatures?

A

the ocean currents transport heat and cold

example gulf of mexico heats Ireland up

28
Q

what would happen if the gulf of mexico’s current switched?

A

Ireland would be 20 degrees colder

29
Q

what would happen if the gulf of mexico’s current switched?

A

Ireland would be 20 degrees colder

30
Q

what is biome productivity?

A

the rate at which biomass is produced per unit area by plants

31
Q

what is primary productivity?

A

rate at which biomass is produced per unit area by plants

32
Q

what is net primary productivity?

A

the biomass left after some primary productivity has been respired away by the plants themselves

33
Q

what represents the actual rate of production of new biomass?

A

net primary productivity

34
Q

what happens biomes the further they venture from the centre of earth?

A

less nutrients, low productivity

35
Q

what 3 strategies have plants evolved?

A

competitors, stress-tolerators and ruderals

36
Q

what plant type makes up majority of biomass in Desert?

A

Therophytes (annuals), fast life cycle

37
Q

what plant type makes up majority of tropical rainforest?

A

phanerophytes

38
Q

what plant type makes up the majority of tundra?

A

hemicryptophytes