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Bio P2 > Biosphere To Biomes > Flashcards

Biosphere To Biomes Flashcards

1
Q

Whats the definition of species

A

A group of organisms of the same kind; able to breed sucessfully to give rise to fertile offspring

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2
Q

Whats the definition of biome

A

Area with similar climate and species

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3
Q

What are the 3 components of the biosphere

A

Lithosphere; Hydrosphere and atmosphere

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4
Q

What are the characteristics of the savannah

A

In limpop and North west
Malaria areas
Mild dry winters
Summer rainfall
Long hot summers
Bushveld; lion, elephant

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5
Q

What are the characteristics of fynbos

A

Western cape
Hot dry summer
Cold wet winter
Strong wind and regular fires
Proteas and birds

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6
Q

What are the characteristics of estuaries

A

Meeting of river and sea
Salt x fresh water
Marine life (fish)

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7
Q

What are the characteristics of wetlands

A

Flood controllers
Areas w water logged soils (covered w shallow layer of water)
Filters improve water quality by trapping sediment
Water lillies and birds

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8
Q

Explain what producers are

A

Autograph - photosynthesis
Water needs - hydrophytes (high)
Mesophytes (moderate)
Xerophytes (low)

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9
Q

Explain consumers

A

Heterothroph
Primary cons ( herbivores)
Secondary cons (carnivores)
Tertiary cons (omnivores)

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10
Q

Explain Decomposers

A

Fungi
Get energy by breaking down dead plants
Saprotroph

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11
Q

What is a Detrivore

A

Feed on animal waste

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12
Q

What are the physiographic facors

A

Altitude (height above sea level)
Slope (how steep/flat area is)
Aspect ( position of sun)

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13
Q

What is a organisim that is out during dusk and dawn

A

Crepuscular

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14
Q

What are the edaphic factors

A

Soil air
Water retention capacity
Soil texture
Tempreture
Humus
Soil acidity

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15
Q

Name characteristics of hydrophytes

A

Many stomata
No xylem
Long flexible stem
Large air space to help plant float
Waterlily
Large; flat leaves

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16
Q

What are the animal adaptations to conserve water

A

Dry skin
Nocturnal
Burrow into ground
Crystal like urine

17
Q

What are plant adaptations to converse water

A

Waxy dead leaves
Small tissues
Thick root system
Shallow root system
Thorms

18
Q

What are 4 seasonal changes

A

Migration
Hibernation
Aestivation
Tubers

19
Q

Characteristics of ectothermic

A

Body temp fluctuates w environment temp
Cant regulate temp
Inactive if too cold

20
Q

Characteristics of endothermic

A

Environment dont influence body temp
Mammals
Survive in hot or cold temp
Can regulate body temp

21
Q

What are the 4 atmosphere gases

A

Oxygen
Carbon dioxide
Nitrogen
Water vapour

22
Q

Explain wind

A

Moving air current

23
Q

What is a food chain

A

Shows how energy in food flows from 1 organism to the next

Bio P2 (3 decks)

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