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Difficulty: MediumTransitions: Cause and Effect

Mycorrhizal fungi form symbiotic relationships with plant roots, helping them absorb nutrients like phosphorus and nitrogen more efficiently. In soils degraded by mining or intensive farming, these fungi are often absent, preventing native vegetation from re-establishing. Reintroducing mycorrhizal spores to depleted soils can restore the vital nutrient pathways required for plant growth. ________, local plant diversity often recovers rapidly, allowing the ecosystem to rebuild its structural complexity.

Which choice completes the text with the most logical transition?

  1. A
    Conversely
  2. B
    Additionally
  3. As a resultAnswer
  4. D
    Previously

Answer

As a result
The passage describes a cause-and-effect sequence: reintroducing mycorrhizal spores restores the vital nutrient pathways, which in turn causes local plant diversity to recover. The transition 'As a result' correctly signals this logical connection.

Step-by-Step Solution

1
Analyze the relationship between the ideas in the passage.
The third sentence states that reintroducing mycorrhizal spores restores crucial nutrient pathways. The fourth sentence explains that local plant diversity recovers rapidly.
This establishes that the restoration of nutrient pathways is the cause and the recovery of plant diversity is the effect.
2
Evaluate the transition choices to find the one that shows a cause-and-effect relationship.
'As a result' expresses cause-and-effect. 'Conversely' expresses contrast, 'Additionally' expresses addition, and 'Previously' expresses chronology.
Selecting 'As a result' maintains the logical connection between the restoration of nutrient pathways and the recovery of plant diversity.

Key Concept

Transitions: Cause and Effect
Estimated Time:1m 0s
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Topics

Transitions: Cause and Effect

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