ÇıkarımSoru #8232
65 - 68. soruları aşağıdaki parçaya göre cevaplayınız.
Beneath the floor of almost every healthy forest lies an intricate subterranean web that has earned the informal nickname 'the Wood Wide Web'. This vast biological network consists of mycorrhizal fungi, whose microscopic thread-like filaments, known as hyphae, weave into and around the roots of trees and plants. Rather than acting as parasites, these fungi engage in an extraordinarily sophisticated symbiotic partnership with their hosts. Trees provide the fungi with carbon-rich sugars produced through photosynthesis, while the fungal hyphae absorb water and vital minerals such as phosphorus and nitrogen from the soil and deliver them directly to the plant roots. Remarkably, researchers have discovered that this network is not purely nutritional; it also acts as an information superhighway. When an individual tree is attacked by pest insects, it can transmit chemical warning signals through the fungal grid to neighbouring trees, allowing them to produce defensive tannins and bitter compounds before the pests arrive. The passage implies that when a forest tree receives a chemical signal about an insect attack, it ----.
- A)stops absorbing water and minerals from the surrounding topsoil
- B)immediately sheds all its leaves to starve the approaching pests
- C)cuts off all communication with the subterranean fungal network permanently
- D)preemptively synthesises protective substances to deter the incoming infestation
- E)relies on fungal hyphae to physically attack and consume the insects
Cevabı ve çözümü göster
Doğru cevap: D) preemptively synthesises protective substances to deter the incoming infestation
Çözüm: Parçada "allowing them to produce defensive tannins and bitter compounds before the pests arrive" denmektedir; yani böcekler henüz gelmeden önleyici olarak savunma kimyasalları üretirler (D).