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1. GCSE combined master > B14a Organisation of Ecosystems > Flashcards

B14a Organisation of Ecosystems Flashcards

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1
Q

Plants are producers. What does this mean?

A

They make food by photosynthesis.

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2
Q

What do all food chains start with?

A

Producer
Plant or algae
Make glucose by photosynthesis

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3
Q

Name the group of organisms that eat the producers

A

Primary consumers

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4
Q

Name the group of organisms that eat primary consumers

A

Secondary consumers

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5
Q

Name the producer on this food chain

A

Algae

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6
Q

What is a tertiary consumer?

A

Eats a secondary consumer

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7
Q

What is a predator?

A

Kill and eat other animals

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8
Q

What is the name given to an organism eaten by a predator?

A

Prey

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9
Q

Describe the pattern of predators and prey in a stable community

A

The numbers of predators and prey rise and fall in cycles

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10
Q

What do food chains show?

A

Feeding relationships of different organisms

and the flow of energy between them

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11
Q

Name the primary consumer shown on this food chain

A

Flies

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12
Q

Name the prey of the snake

A

Frog

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13
Q

Name the secondary consumer shown on this food chain

A

Frog

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14
Q

Define biomass

A

Total mass of all the living material

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15
Q

What do the arrows show in a food chain?

A

Movement of energy or biomass

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16
Q

What pieces of apparatus is used to measure the number or distribution of organisms in an area?

A

Quadrat

17
Q

How is a mean number of organisms in a population calculated?

A

Add together the number of organisms found in each quadrat. Divide by the number of quadrats used

18
Q

When considering the abundance of different organisms what is meant by the term mode?

A

The organism present in the greatest numbers

19
Q

Which organism is feeding as a secondary consumer?

A

Fish

20
Q

When considering the abundance of different organisms what is meant by the term median?

A

The organism that represent the middle value when the numbers are arranged from lowest to highest.

21
Q

The diagram shows the carbon cycle. Name the process labelled A

A

Photosynthesis

22
Q

The diagram shows the carbon cycle. Name the process labelled B

A

Respiration

23
Q

Describe the carbon cycle

A

Plant change carbon dioxide into organic materials in photosynthesis

Organic material passes along the food chain

Carbon dioxide is released by into the atmosphere by respiration from plants and animals

Decomposers convert dead material into carbon dioxide

Burning fuel also releases carbon dioxide into the atmosphere

24
Q

Name the process labelled C on the diagram of the carbon cycle

A

Combustion (burning)

25
Q

Describe the water cycle

A

Water from lakes and oceans evaporates
Evaporated water condense to form clouds
Precipitation (Rain)

Infiltration

Percolation to form ground water

Water absorbed by plants and is lost by transpiration

Water runs off into rivers and oceans

26
Q

The diagram show the water cycle. Name the process labelled A

A

Run off

27
Q

The diagram show the water cycle. Name the process labelled B

A

Precipitation (rain)

28
Q

The diagram show the water cycle. Name the process labelled C

A

Evaporation

29
Q

The diagram shows the water cycle. Name the process labelled 1

A

Transpiration

30
Q

The diagram shows the water cycle. Name the process labelled 1

A

Transpiration

31
Q

Name the secondary consumer on this food chain

A

Lion

32
Q

What do the arrows show on this diagram

A

Movement of energy or biomass

1. GCSE combined master (25 decks)

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