[Campbell Biology P.1221] What is an "ecotone" as described in the text? | Practice Question

What is an "ecotone" as described in the text?

  • A: An area where distinct boundaries between biomes are always found.
  • B: A region of intergradation between neighboring biomes, which can be wide or narrow.
  • C: A specific layer of vegetation found in all terrestrial biomes.
  • D: The dominant plant species that define a particular biome.

Explanation

The text explicitly defines an ecotone as 'The area of intergradation, called an ecotone, may be wide or narrow.' between neighboring biomes.