Biology 0610 · IGCSE · Concept and uses of classification systems

Concept and uses of classification systems — practice question

Lichens consist of two different organisms living together. The table gives some features of two organisms, X and Y, that are present in most lichens. X: composed of strands known as hyphae; hyphae possess cell walls and many nuclei Y: unicellular; the cell has a nucleus and chloroplasts Which kingdoms are shown by X and Y?

  • AX: Fungus; Y: Plant
  • BX: Fungus; Y: Protoctist
  • CX: Protoctist; Y: Fungus
  • DX: Protoctist; Y: Plant

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