World biomes — A/L Biology

How do I practise World biomes?

1 question with a worked solution

1. Which global terrestrial biome is characterized by continuous subsoil permafrost, brief cold summers, absence of arborescent trees, and vegetation dominated by lichens, mosses, and low sedges?
   1. A) Temperate Deciduous Forest
   2. B) Chaparral
   3. C) Arctic Tundra
   4. D) Boreal Coniferous Forest (Taiga)
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   Correct answer: C) Arctic Tundra

   The Arctic Tundra encircles the north pole and is defined by permafrost (permanently frozen subsoil) which prevents deep root penetration, high winds, extremely low temperatures, and low precipitation, resulting in treeless landscapes dominated by cryptogams, sedges, and dwarf shrubs.

   Show worked solution

   Step 1: Match biome characteristics: - Taiga: coniferous evergreen trees (pines, firs). - Temperate forest: broadleaf deciduous trees shedding leaves in autumn. - Tundra: permafrost layer, treeless, lichens/mosses. Answer: Arctic Tundra.
   Modelled on: the A/L Biology examination pattern

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Where does World biomes fit in the syllabus?

Year 2 · Term 2