◈ Oracle PrepSign Up Free
O-LevelBiologyEcology & Environment5090/11 · Oct/Nov 2016 · Q281 Mark

The diagram shows a food chain. mahogany tree → caterpillar → songbird → hawk What is not recycled from the hawk to the mahogany tree?

Acarbon dioxide
Benergy
Cnitrogen atoms
Dwater

✓ Correct answer

B: energy

Practise more questions on this topic

Oracle Prep sorts past-paper questions by topic, so you can drill Ecology & Environment and see which topics are most likely to come up next.

Sign up free →

About this question

Topic
Ecology & Environment, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source
O-Level Biology, Oct/Nov 2016 Paper 1 Variant 1, question 28.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content

Related Biology questions

Ecology & EnvironmentMay/June 20141m

Which statement correctly describes relationships in ecosystems?

Ecology & EnvironmentMay/June 20141m

In which natural cycles are protein molecules involved?

Ecology & EnvironmentMay/June 20141m

Why is the organism that causes malaria called both a parasite and a pathogen?

RespirationMay/June 20131m

What happens to the diaphragm muscles and to the internal and external intercostal muscles when a person breathes out…

RespirationMay/June 20131m

In the human breathing system, which features maintain the carbon dioxide gradient between the alveoli and the outsid…

Coordination & ResponseMay/June 20131m

Which of these correct statements describes control by negative feedback?

← Browse all past-paper questions

© 2026 Oracle Prep