Edexcel A-Level Biology A2 5.13 Niche Distribution and Abundance Questions

Define niche as an organism’s role, then connect resource use, competition and environmental conditions to where populations occur and how abundant they are.

Exam points

define niche as the role of an organism and its interactions with biotic and abiotic conditions
explain how niche differences produce patterns in species distribution and abundance
interpret competition and environmental limits in examples such as barnacle or predator distributions

[Maximum number: 2]

Lions, giraffes and acacia trees are found on the African Plains.
The diagram shows the energy in the trophic levels that these organisms occupy.

Give the meaning of each of the following terms, using the information in the diagram to illustrate your answer.

Niche

All question bank results loaded

Edexcel A-Level Biology A2 5.13 Niche Distribution and Abundance Questions question 1