Food chains and food webs — Paper 2 · IGCSE Sciences - Co-ordinated (Double) 0654

5 Which statement about all food chains is correct? A All the carnivores are producers. B All the consumers are carnivores. C All the herbivores are consumers. D All the producers are herbivores.

1 marks

Answer: C

This question in 0654/22 May/June 2017

5 Why do food chains usually have fewer than five trophic levels? A Decomposers are not usually included in the chain. B Energy is lost between each trophic level. C There is only one level of carnivores. D There is only one level of herbivores.

1 marks

Answer: B

This question in 0654/23 May/June 2017

13 Which statement about food chains is correct? A A carnivore is a consumer that gets its energy from plants. B A carnivore is a producer that gets its energy from animals. C A herbivore is a consumer that gets its energy from plants. D A herbivore is a producer that gets its energy from animals.

1 marks

Answer: C

This question in 0654/22 Oct/Nov 2017

9 Which organisms obtain energy directly from every trophic level? A carnivores B decomposers C herbivores D producers

1 marks

Answer: B

This question in 0654/23 Oct/Nov 2017

12 The diagram shows a food web. hawk hog snake American sparrow toad garter spider snake mouse rabbit grasshopper grass What is the maximum number of trophic levels shown? A 3 B 4 C 5 D 10

1 marks

Answer: C

This question in 0654/22 May/June 2019

12 The diagram shows the energy flow in an ecosystem. green Sun animals plants X Which group of organisms is X? A carnivores B decomposers C herbivores D producers

1 marks

Answer: B

This question in 0654/23 May/June 2019

12 In the food chain shown, 10% of the energy is transferred between each trophic level. grass → grasshopper → frog → snake → buzzard For every 100 kJ of energy in the herbivore, how much energy will be transferred to the tertiary consumer? A 0.1 kJ B 1 kJ C 10 kJ D 100 kJ

1 marks

Answer: B

This question in 0654/21 Oct/Nov 2019

12 The flow chart shows part of a food chain. grass  rabbit  fox What describes the rabbit? A consumer and carnivore B consumer and herbivore C producer and carnivore D producer and herbivore

1 marks

Answer: B

This question in 0654/21 May/June 2020

12 The diagram shows a food web. owl snake fox mouse frog rabbit insect plants Which statement is correct? A The fox is a secondary consumer only. B The mouse is a primary consumer only. C The owl is a tertiary consumer only. D The snake is a tertiary consumer only.

1 marks

Answer: D

This question in 0654/22 May/June 2020

12 Which organism in the food web is a secondary and a tertiary consumer? coyote fox rabbit mouse grass A coyote B fox C mouse D rabbit

1 marks

Answer: A

This question in 0654/21 Oct/Nov 2020

12 Which type of organism gets its energy from dead or waste organic matter? A carnivore B consumer C decomposer D producer

1 marks

Answer: C

This question in 0654/22 Oct/Nov 2020

12 The diagram shows a food web. hawk fox spider snake kangaroo rat lizard plants How many organisms act as secondary consumers in this food web? A 2 B 3 C 4 D 6

1 marks

Answer: C

This question in 0654/22 Feb/March 2021

12 Why do food chains usually have fewer than five trophic levels? A All the carnivores consume herbivores. B The energy passed on reduces from one trophic level to the next. C There is less protein in each individual higher up the chain. D There is only one producer in each chain.

1 marks

Answer: B

This question in 0654/22 May/June 2021

12 Which organisms obtain energy directly from every trophic level? A carnivores B decomposers C herbivores D producers

1 marks

Answer: B

This question in 0654/21 May/June 2022

12 Which organisms obtain energy directly from every trophic level? A carnivores B decomposers C herbivores D producers

1 marks

Answer: B

This question in 0654/22 May/June 2022

12 Which organisms obtain energy directly from every trophic level? A carnivores B decomposers C herbivores D producers

1 marks

Answer: B

This question in 0654/23 May/June 2022

12 Which type of organism gets its energy from the remains of dead organisms or other organic waste? A a carnivore B a decomposer C a herbivore D a producer

1 marks

Answer: B

This question in 0654/21 Oct/Nov 2022

12 What is a producer in a food web? A an organism that gets its energy by digesting plants B an organism that makes its own food using light energy C an organism that obtains energy from digested animals D an organism that gets its energy from dead or waste organic matter

1 marks

Answer: B

This question in 0654/22 Oct/Nov 2022

12 What is a carnivore? A an organism that gets its energy by eating animals B an organism that gets its energy by eating plants C an organism that gets its energy from dead matter D an organism that makes its own organic matter

1 marks

Answer: A

This question in 0654/23 Oct/Nov 2022

12 The diagram shows a food web. kestrels wrens bank voles goldfinches aphids caterpillars grass hogweed ivy oak tree How many primary consumers, secondary consumers, tertiary consumers and quaternary consumers are present? primary secondary tertiary quaternary A 1 1 4 4 B 2 4 2 0 C 4 2 1 0 D 4 4 1 1

1 marks

Answer: C

This question in 0654/21 May/June 2023

12 The diagram shows a food web. jellyfish turtles phytoplankton zooplankton fish shellfish seabirds Which groups of organisms are both primary and secondary consumers? A fish and jellyfish B fish and shellfish C seabirds and turtles D shellfish and zooplankton

1 marks

Answer: A

This question in 0654/22 May/June 2023

12 The diagram shows a marine food web around a kelp (seaweed) forest. killer whale seal sea otter large fish sea urchin crab small fish kelp Which organisms are secondary consumers and which organisms are tertiary consumers? secondary consumers tertiary consumers A seal killer whale B sea otter, large fish killer whale, seal, large fish C sea otter, large fish sea otter, killer whale, seal D sea urchin, small fish, crab sea otter, large fish

1 marks

Answer: C

This question in 0654/23 May/June 2023

12 The diagram shows a North American food web. mountain lion snake owl fox deer mice birds squirrel rabbit beech tree berries grasses Which organism is both a primary and secondary consumer? A birds B owl C snake D squirrel

1 marks

Answer: D

This question in 0654/22 Oct/Nov 2023

12 Which type of organism obtains energy by feeding only on plants? A herbivore B carnivore C producer D secondary consumer

1 marks

Answer: A

This question in 0654/22 Feb/March 2024

12 The diagram shows part of a food web in a rainforest. jaguar green anaconda tanager (bird) praying mantis crocodile orb spider leaf-cutter ant agouti brazil nut tree fruit tree Which animals are feeding as quaternary consumers? A crocodile and green anaconda B crocodile and jaguar C green anaconda and tanager D jaguar and tanager

1 marks

Answer: C

This question in 0654/23 May/June 2024

12 What is a description of a trophic level? A the ability of an organism to make its own food through photosynthesis B the death of organisms due to increased availability of nitrates C the interaction of an organism with its environment D the position of an organism in a food chain

1 marks

Answer: D

This question in 0654/22 Oct/Nov 2024

12 Which statement about all food chains is correct? A All the carnivores are producers. B All the consumers are carnivores. C All the herbivores are consumers. D All the producers are herbivores.

1 marks

Answer: C

This question in 0654/23 Oct/Nov 2024

12 In the food chain shown, 10% of the energy is transferred between each trophic level. grass  grasshopper  frog  snake  buzzard How much energy is transferred to the tertiary consumer for every 100 kJ of energy in the herbivore? A 0.1 kJ B 1 kJ C 10 kJ D 100 kJ

1 marks

Answer: B

This question in 0654/21 May/June 2025

13 Information about a lake is shown. ● Aquatic plants grow in the lake. ● Aquatic plants are eaten by small fish. ● Small fish are eaten by large fish. ● Small fish are eaten by frogs. Which statement is correct? A The frogs are primary consumers. B The large fish are secondary consumers. C The small fish are at trophic level 1. D The aquatic plants are herbivores.

1 marks

Answer: B

This question in 0654/22 May/June 2025

11 A food chain is shown. plant  insect  mouse  snake  eagle Which statements are correct for this food chain? 1 The eagle is a tertiary consumer. 2 The insect is at trophic level 1. 3 The mouse is a secondary consumer. 4 The plant is a producer. A 1 and 2 B 2 and 3 C 2 and 4 D 3 and 4

1 marks

Answer: D

This question in 0654/23 May/June 2025

13 Which statement explains why food chains usually have fewer than five trophic levels? A All the carnivores consume herbivores. B The energy passed on decreases from one trophic level to the next. C There is less protein in each individual higher up the chain. D There is only one producer in each chain.

1 marks

Answer: B

This question in 0654/21 Oct/Nov 2025

13 Rabbits are herbivores. Which trophic levels can the rabbit occupy? A 1 only B 2 and 3 C 2 only D 3 and 4

1 marks

Answer: C

This question in 0654/22 Oct/Nov 2025

13 What is the most energy efficient resource for humans to eat? A herbivores B primary consumers C producers D secondary consumers

1 marks

Answer: C

This question in 0654/23 Oct/Nov 2025