Skip to content
MathsGenie logo
Open app

Course home

  1. IGCSE
  3. Biology Edexcel
  5. Question bank

Feeding relationships

Medium
1234567891011121314151617181920
Question 13

In an oak woodland, a researcher gathered the following ecological census data for a specific food chain:

  • Producer: Oak tree (population: 5)
  • Primary consumer: Winter moth caterpillar (population: 8000)
  • Secondary consumer: Great tit (population: 120)
  • Tertiary consumer: Sparrowhawk (population: 4)
a.

Describe the shape of the pyramid of numbers representing this food chain.

[2]
b.

Explain how a pyramid of biomass for this food chain would differ from the pyramid of numbers.

[2]
c.

State two reasons why not all the energy stored in the producers is transferred to the primary consumers.

[2]

Feeding relationships Questions

  1. IGCSE
  2. /Biology
  3. /Feeding relationships