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Edexcel IGCSE Biology 4.7 Concepts of Food Chains Questions

Practise drawing and interpreting food chains, food webs and ecological pyramids from organism data and diagrams.

Syllabus
First assessment 2019
Course
Biology 4BI1

Exam points

  • draw food chains from webs with correct organism order and arrow direction
  • construct labelled pyramids of number or biomass from counts, scale or food-chain data
  • predict population effects when one organism in a food web increases or decreases

Edexcel IGCSE Biology 4.7 Concepts of Food Chains Questions question 1

[Maximum number: 3]

The diagram shows part of a woodland food web.

Figure for Question Edexcel IGCSE Biology 4.7 Concepts of Food Chains Questions question 1 — Edexcel IGCSE Biology

This is one food chain from the food web.

 oak tree ⟶ mouse ⟶ fox \text { oak tree } \longrightarrow \text { mouse } \longrightarrow \text { fox }

A student counted 20 mice living around 4 oak trees. There were also 2 foxes in the area.

Draw a labelled pyramid of numbers for this food chain on the grid.
Your pyramid should be drawn to scale.

Figure for Question Edexcel IGCSE Biology 4.7 Concepts of Food Chains Questions question 1 — Edexcel IGCSE Biology
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