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Zorluk: KolayDistinguishing Main Ideas from Supporting Details

Read the following passage and answer the question below.

Leafcutter ants are famous for their conspicuous columns, carrying freshly cut green leaves back to their underground nests. However, contrary to popular belief, these ants do not actually eat the leaves. Instead, they use the foliage as a substrate to cultivate a specific species of fungus, Leucoagaricus gongylophorus, which serves as the primary food source for their larvae. This sophisticated agricultural system represents a highly evolved mutualism that has persisted for millions of years. Within the nest, larger worker ants chop the leaves into smaller pieces and chew them into a paste, while smaller workers tend the fungal gardens, weeding out unwanted spores. Additionally, the ants carry a specialized strain of bacteria on their cuticles that produces antibiotics, actively protecting their fungal crops from parasitic molds. Through this coordinated division of labor and chemical defense, leafcutter ant colonies sustain a complex agricultural enterprise that rivals human farming in its efficiency.

Which of the following statements best expresses the main idea of the passage?

  1. A
    Symbiotic relationships in the insect world are essential for the survival of many diverse species.
  2. Leafcutter ants engage in a complex, symbiotic agricultural system by cultivating fungus as their primary food source.Cevap
  3. C
    Leafcutter ants consume large quantities of green leaves to nourish their expanding colonies.
  4. D
    Worker ants carry out specialized roles, such as chopping leaves, tending gardens, and carrying bacteria.

Cevap

Leafcutter ants engage in a complex, symbiotic agricultural system by cultivating fungus as their primary food source.
The correct answer correctly identifies the central focus of the passage: the complex agricultural mutualism between the leafcutter ants and their cultivated fungus. The entire passage is structured to explain how the colony sustains this agricultural enterprise.

Adım Adım Çözüm

1
Analyze the passage to identify the central topic.
The text focuses on leafcutter ants, their collection of leaves, and the purpose of these leaves (cultivating a specific fungus).
Determining the subject matter helps narrow down what the overall argument or description is centering on.
2
Differentiate the primary claim from supporting evidence.
The core claim is that leafcutter ants run a sophisticated agricultural system. The descriptions of specific worker tasks (chopping, weeding, carrying bacteria) serve as supporting details that explain how they run this system.
Distinguishing the main point from the details that support it prevents selecting an option that is true but too narrow.
3
Evaluate the options to find the one that encapsulates the entire passage without being overly broad or incorrect.
The option about a complex agricultural system cultivates fungus captures the global focus. The options about general insect symbiosis (overly broad), eating leaves (incorrect detail), and worker roles (narrow detail) are eliminated.
This confirms that the selected answer functions as a summary of the whole passage rather than a local detail.

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Distinguishing Main Ideas from Supporting Details
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Distinguishing Main Ideas from Supporting Details

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