The Living World Flashcards

(52 cards)

1
Q

What is an ecosystem?

A

A community of plants and animals living together in a habitat. The lives of the plants and animals relate closely to each other and the climate and soil of the area.

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2
Q

Flora

A

Plants

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3
Q

Fauna

A

Animals

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4
Q

Non living components

A
Water
Sunlight
Soil
Rain
Temp
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5
Q

Producer

A

Does photosynthesis

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6
Q

Consumer

A

Eats plant matter and/or herbivores

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7
Q

Decomposer

A

Breaks things down

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8
Q

Food chain

A

Single links between organisations

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9
Q

Food web

A

Complex hierarchy of plants and animals

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10
Q

Biotic

A

Living

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11
Q

Abiotic

A

Non living

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12
Q

What are biomes?

A

Large scale ecosystems defined by abiotic factors

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13
Q

Describe temperate boreal forest (taiga)?

A

Northern coniferous (evergreen). Cold. Largest biome. 17% of earths land area.

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14
Q

Describe temperate deciduous forest?

A

Few extremes of climate. Eastern north America + western Europe (some of asia). Four seasons. Leaves change + drop off.

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15
Q

Describe arctic + alpine tundra

A

Covers one fifth of land on earth. Little precipitation. Short growing season. Poor nutrients. Below freezing at night.

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16
Q

Describe grassland

A

Grasses, flowers and herbs. Average annual precipitation. Unpredictable precipitation. Drought and fire.

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17
Q

Describe tropical rainforests

A

Hot. Wet. On or around the equator. Greatest biodiversity on earth.

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18
Q

Describe desert

A

Hot. Very dry. Drought. Little vegetation.

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19
Q

Describe chaparral

A

Flat plains. Rocky hills. Mountain slopes. Hot. Dry. Mild winters.

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20
Q

Describe tropical savannah

A

Hot. Dry. Mainly grassland. Scattered shrubs. Isolated trees.

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21
Q

Why are rainforest soils red?

A

High iron and aluminium content.

22
Q

What is leaching?

A

Drain away of nutrients from soil

23
Q

What are garimpeiros?

24
Q

What do garimpeiros use to purify their gold?

25
What is the leading cause of deforestation?
Cattle ranching
26
How does cattle ranching lead to erosion and leaching?
Soil is open to rain
27
What is the name of the road running through the Amazon rainforest?
BR163 | Trans-Amazonian Highway
28
How long is the BR163?
1700km
29
What are the disadvantages of the BR163?
Encourages more people to come and take down trees | Loss of habitats
30
What are the advantages of the BR163?
Road can be used anytime Bring aid to those in need Tourism Increased rate of distribution of legal goods Scientists and meteorologists can get there easier
31
What is another cause of deforestation?
Logging trees | Hydroelectric power
32
On which river is the Tucurui Dam?
The Tocatins river (tributary)
33
How large is the Tucurui dam reservoir?
2000km²
34
How many homes were lost due to flooding?
30,000
35
How much did the Tucurui dam cost?
$5 billion
36
What is sustainability?
🎵meeting the needs of today, without compromising the needs of tomorrow🎵
37
How much of south America is covered by the rainforest?
40%
38
How many species of bird are in the rainforest?
1000
39
How many species of plants are in the rainforest?
60,000
40
How many species of insects in the rainforest?
10 million
41
How many people live in the rainforest?
20 million
42
How many square miles of land does the rainforest cover?
2.1 million
43
The Amazon is home almost ___ of all species on earth
20%
44
___ of the world's fresh water comes from the rainforest
20%
45
___ of the world's oxygen comes from the rainforest
28%
46
____ of ALL flora and fauna live in the rainforest
Half
47
___ of all medicine comes from the rainforest
25%
48
____ rainforest plants have anti-cancer properties
2000
49
What are the solutions of the rainforest's problem?
``` Selective logging Ecotourism Conservation Education International agreements (FSC) ```
50
Why don't saguaro cactus grow near each other?
Because their roots are so long.
51
What are the adaptations of the saguaro cactus?
Hairy leaves Spines so they dont get eaten Waxy coating
52
What are the adaptations of camels?
``` Thick eyelashes Slit nostrils Big rubber lips Thick fur on top Fatty hump Thin fur on underside Lose little water through sweat + urine ```