All the populations of different species in an area make up a

  1. ecosystem
  2. population
  3. community
  4. trophic level
Answer

C) community

Definition of community. O Level Biology · Topic 19 Relationships of Organisms with One Another and with the Environment · 19.3 Ecosystems and biodiversity

Biology MCQ · More O Level Biology: Organisms and the Environment MCQs · Practise