alleryলাইকেন, যা এমনকি একটি খালি পাথরের উপরেও পরিবেশগত অনুক্রম (ecological succession) শুরু করতে সক্ষম, প্রকৃতপক্ষে কাদের মিথোজীবী সহাবস্থান?
Aশ্যাওলা এবং ব্যাকটেরিয়া
Bশ্যাওলা এবং ছত্রাক
Cব্যাকটেরিয়া এবং ছত্রাক
Dছত্রাক এবং মস
Answer & Solution
Correct answer: B. শ্যাওলা এবং ছত্রাক
UPSC CSE Prelims 2014 (GS-I, Set A), Q.22. Official answer key: B.
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