Ecosystems And Peatlands Flashcards

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0
Q

What are the living elements of ecosystems

A

Plants, animals, humans and bacteria

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1
Q

What is an ecosystem

A

A living community of plants and animals and the environment in which they live

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2
Q

What are the non-living elements of ecosystems

A

Sunlight, air, water, rocks and soil

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3
Q

How does an ecosystem work

A

-The plants make food inside themselves using the suns energy

  1. the plant traps the suns energy in chlorophyl
  2. it takes in carbon dioxide through its leaves and water through its roots
  3. it uses the suns energy to turn see into glucose - this process is called photosynthesis
  4. It combines glucose with minerals from the soil it needs to grow(these minerals are called nutrients[nitrogen, potassium and phosphorus])
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4
Q

What eats plants

A

Herbivores

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5
Q

What do carnivores eat

A

Animals

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6
Q

What do omnivores eat

A

Plants and meat

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7
Q

Give two examples of decomposers

A

Fungi and bacteria

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8
Q

What do decomposers feed on

A

Dead animals, droppings and other waste material

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9
Q

What does a food chain show

A

What eats what

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10
Q

Give an eg of a food chain

A

Plant(producer) -> caterpillar (herbivore) -> wood mouse (carnivore) -> fox (carnivore)

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11
Q

What does a food chain always stat with

A

A plant

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12
Q

What is passed along the chain

A

The energy from the sun which was trapped by the plant

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13
Q

Why are food webs better than food chains

A

They are more realistic because consumers will generally eat more than one thing

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14
Q

What will every living thing become

A

A feast for the decomposers

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15
Q

What do decomposers do when they make material rot

A

They release nutrients from it and then they sink back into the soil and get used all over again

16
Q

What is peat

A

Partially decomposed plant material which has been compressed under water-logged conditions

17
Q

How long to peat bogs take to form

A

Average of 1cm every 10 years

18
Q

What does this give us evidence of

A

What past environments were like

19
Q

What do we call peatlands in Ireland

A

Bogs

20
Q

How do bogs form?

A
  1. The last ice age ended 10,000 years ago - when the ice melted valleys and lakes filled with water
  2. Plants and vegetation grow around the lake, they died and fell in, slowly filling up the lake
  3. When the lake was full, mosses and trees grew on the surface, they died and created layers of partially decomposed material -> peat
21
Q

What are the two types of bogs

A

Raised bogs and blanket bogs

22
Q

Name 3 bog plants

A

Heather, sundew and bog cotton

23
Q

Name 3 peatlands animals

A

Hare, rabbit and frog

24
Q

Name 3 ways peatlands are being destroyed

A
  • Cutting peat for milling in horticulture
  • dumping rubbish
  • grazing sheep
25
Q

What do peatlands preserve

A
  1. Plants and pollen which grew here in the past and record past vegetation and climates
  2. Artifacts and bog bodies
26
Q

What do peatlands provide

A

Habitats for animal species which would become extinct because they only live in bogs

27
Q

Give 3 ways we can protect peatlands

A
  • use wooden walkways to keep public off sensitive areas
  • information boards educate the public about bog areas
  • give peatlands ASSI status (areas of special scientific interest)