[Campbell Biology P.694] Based on Figure 30.11 and the accompanying text, which of the follo... | Practice Question

Based on Figure 30.11 and the accompanying text, which of the following is NOT described as a primary mechanism for seed dispersal?

  • A: Dispersal by wind (e.g., maple fruits).
  • B: Dispersal by explosive action.
  • C: Dispersal by animal ingestion and subsequent defecation.
  • D: Dispersal by direct human cultivation and planting.
  • E: Dispersal by 'hitchhiking' on animal fur.

Explanation

Figure 30.11 and the associated text describe natural adaptations for seed dispersal: explosive action, wind dispersal maple fruits , animal ingestion berries , and 'hitchhiking' on animal fur cockleburs . Direct human cultivation and planting, while a way for humans to propagate plants, is not presented as a natural adaptation or primary mechanism of seed dispersal by the plants themselves in the context of this figure or the surrounding text.