F.5 C6.3 TRF ecosystem

F.5 C6.3 TRF ecosystem

Revision of C6.1-6.2

Multiple Choice

Textbook p.8 Q1

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Textbook p.8 Q2

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Textbook p.8 Q3

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Textbook p.18 Q1

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Textbook p.18 Q2

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Textbook p.18 Q3

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Textbook p.18 Q4

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Textbook p.19 Q5

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Textbook p.19 Q6

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Textbook p.19 Q7

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Textbook p.95 Q1

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Textbook p.95 Q2

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Textbook p.95 Q3

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Textbook p.96 Q4

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TRF ecosystem​​

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Multiple Choice

Which of the following is true?

• biotic components are living things.

• abiotic components are living things.

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Multiple Choice

p.1 past paper 1992 Q17

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p.1 past paper 1992 Q41

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p.3 past paper 1996 Q19

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p.3 past paper 1998 Q25

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p.4 past paper 2000 Q24

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p.6 past paper 2002 Q25

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p.8 past paper SP Q9

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p.11 past paper 2014 Q32

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p.13 past paper 2017 Q32

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p.16 past paper 2021 Q17

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Draw

Which one is the producer?

Draw

Which one depend on green plant to get energy?

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Draw

Which one depend on caterpillar, snail and grasshopper to get energy?

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In a tropical rainforest, individual food chains are interlocked at various levels to form a food web.

What would happen to other living things if there were no producers?
P.26 textbook

Open Ended

What would happen to other living things if there were no producers?

• Other living things would die.

• •This is because if there were no producers, there would be no food for primary consumers. As a result, there would be no food for secondary consumers, and so on.

Compare a food web and a food chain.
Explain why a food web in an ecosystem is more stable than a food chain.
P.26 textbook

Open Ended

Compare a food web and a food chain. Explain why a food web in an ecosystem is more stable than a food chain.

• It is more stable because it will not collapse even if one component is gone.

Fill in the Blanks

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Draw

How energy flow among them?

HW​

​Textbook p.26 Q1-3 (Fig.5)

Question i to iv on p.9

Multiple Choice

bi. Which trophic level do green plants belong to?

• T1: Producer

• T2: Primary consumer

• T3: Secondary consumer

• T4: Tertiary consumer

Multiple Choice

bii. Which trophic level do herbivores belong to?

• T1: Producer

• T2: Primary consumer

• T3: Secondary consumer

• T4: Tertiary consumer

Multiple Choice

bii. Which trophic level do carnivores belong to?

• T1: Producer

• T2: Primary consumer

• T3: Secondary consumer

• T4: Tertiary consumer

Multiple Choice

biii. Which trophic level receive the largest amount of energy?

• T1: Producer

• T2: Primary consumer

• T3: Secondary consumer

• T4: Tertiary consumer

Multiple Choice

biii. Which trophic level receive the least amount of energy?

• T1: Producer

• T2: Primary consumer

• T3: Secondary consumer

• T4: Tertiary consumer

Multiple Choice

biv. How does energy change when trophic level rises?

• As trophic level rises, MORE energy remains.

• As trophic level rises, LESS energy remains.