0653.B15.2.10 — Use food chains and food webs to describe the impact humans have through overharvesting of food species and through introducing foreign spec: past paper questions
Real questions on 0653.b15.2.10 — use food chains and food webs to describe the impact humans have through overharvesting of food species and through introducing foreign spec
The newest 6 of 6 written questions. Open one to see it on the real paper.
- 0653/33 · October/November 2025 · Q8d[2]
The Moon reflects light from the Sun to the Earth. The Moon is a distance of 380 000 km from the Earth. The speed of light is 3.0 × 10 5 km / s. Calculate the time it takes light to travel from the Moon to the Earth. time = s
See it on the paper → - 0653/42 · October/November 2025 · Q3a(i)[1]
Complete the food web in Fig. 3.1. (i)
See it on the paper → - 0653/42 · October/November 2025 · Q3a(ii)[1]
Identify one herbivore in Fig. 3.1.
See it on the paper → - 0653/31 · October/November 2023 · Q7a(i)[1]
The food web is not complete. The heron eats the carp. The alligator eats the heron. Draw two arrows on Fig. 7.1 to show these feeding relationships.
See it on the paper → - 0653/31 · October/November 2023 · Q7a(ii)[1]
State the name of one producer shown in Fig. 7.1.
See it on the paper → - 0653/31 · October/November 2023 · Q7a(iii)[2]
Complete the sentences about the food web in Fig. 7.1. The mosquito eats the orchid. The mosquito is a consumer. The frog eats the mosquito. The frog is a secondary consumer. The raccoon eats the frog. The raccoon is a consumer.
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What examiners said
Most candidates drew their arrows correctly to show the feeding relationships from the carp to the heron and from the heron to the alligator. Some candidates placed their arrow heads at the wrong end of the line. Candidates should be aware that the arrows show the direction of transfer of energy.
— Examiner report, October/November 2023, 0653/31 Q7(a)(i) (Cambridge)
Most candidates identified the consumers correctly. Some wrote first and/or third as their responses. These were not awarded credit because the terms for these feeding relationships are clearly shown as primary and tertiary (consumers) in the syllabus.
— Examiner report, October/November 2023, 0653/31 Q7(a)(iii) (Cambridge)
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