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Life Sciences > Biomes > Flashcards

Biomes Flashcards

1
Q

What are the 3 components of the biosphere

A

Atmosphere
Lithosphere
Hydrosphere

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2
Q

What is a biosphere?

A

All parts of the earth where living organisms occur

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3
Q

What is an atmosphere?

A

Layer of air surrounding the earth and consists of a various mixture of gases

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4
Q

What is the function of the atmosphere?

A

It protects from UV radiation by absorbing the harmful rays from the sun from reaching the earth surface which can cause skin cancer

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5
Q

What is lithosphere

A

Soil and rocks comprising the outer layer of the earth

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6
Q

What is the function of lithosphere?

A

It is the coolest of all spheres.

It is a habitat for life.

It stores important resources like minerals, fossil fuels and gold that are extracted and used by humans.

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7
Q

What is hydrosphere?

A

It includes all the water on the surface of the earth

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8
Q

What is the biggest sphere?

A

Hydrosphere which consists of 75% of the earth surface

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9
Q

What is the function of the hydrosphere?

A

It is a habitat for life.

Supports life by providing essential things like freshwater for humans

It regulates earth temperature by condensation, evaporation and precipitation

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10
Q

What is a biome?

A

Any area in a particular climate, together with the living organisms occuring in that area

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11
Q

What is are the two types of biomes?

A

Terrestrial biomes and aquatic biomes

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12
Q

What are the characteristics determining a biome?

A

The soil type
Animal life
Vegetation
Climate

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13
Q

How is a biome named?

A

By the dominant type of vegetation in that area

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14
Q

What is the importance of biomes?

A

It supports biodiversity by when each type type of biome supports different vegetations and animal life.

It acts as a habitat for different living organisms

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15
Q

List the different types of terrestrial biomes.

A

Succulent Karoo
Savannah biome
Nama Karoo
Fynbos
Thicker biome
Grassland biome
Thicket biome
Forest biome

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16
Q

What is the largest biome in South Africa?

A

Savannah biome

17
Q

How to see a Savannah biome on a question paper?

A

A baobab tree, the big five with a lot of grass with scattered grass. Bushvelds and very dry sand.

18
Q

What is the type of soil in a Savanah biome?

A

Sandy soil lacking in nutrients

19
Q

What is the type of soil in a Savanah biome?

A

Sandy soil lacking in nutrients

20
Q

Determine the suitability of the soil in the Savannah biome for crops.

A

It is not suitable because it contains sandy soil which contains little nutrients

21
Q

What is the animal life in the Savanah biome

A

It contains the big five and many different diverse animals

22
Q

What is the type of climate in a Savanah biome?

A

Warm wet summers and cold dry winters

23
Q

What is the type of vegetation in the Savannah biome?

A

Predominantly grass and contains trees like the baobab tree and golden or red grass

Life Sciences (3 decks)

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