Loading...
UPSC 1999: Which one of the following is a useful functional association between fungi and the roots of higher plants?
(a)Biofertilizer
(b)Coralloid root
(c)Lichen
(d)Mycorrhiza
Attempt This Question
Not attemptedCorrect Answer: (d) Mycorrhiza
Mycorrhiza is a mutualistic association where fungal hyphae colonise plant roots, increasing water and mineral uptake; biofertilisers and lichens are different associations, while coralloid roots involve cyanobacteria in cycads. ([licchavilyceum.com](https://licchavilyceum.com/upsc-civil-services-prelims-1999-solved-question-paper/))
Related Current Affairs
Related UPSC Questions
More from Ecosystems & Ecology Concepts
Frequently Asked Questions
What is the correct answer to this UPSC 1999 Environment & Ecology question?▼
The correct answer is option (d): Mycorrhiza. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Ecosystems & Ecology Concepts question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 1999, GS Paper 1, as Question 123. It falls under Environment & Ecology > Ecosystems & Ecology Concepts.
What is the difficulty level of this UPSC question?▼
This question is rated "easy". It tests basic recall and most well-prepared aspirants should answer it correctly.
How many UPSC Prelims questions have been asked from Ecosystems & Ecology Concepts?▼
UPSC has asked 48 questions from Ecosystems & Ecology Concepts (under Environment & Ecology) across multiple years. Visit the topic page to see the full list and year-wise trends.