Nepali help plz. अर्थ खुल्ने गरी वाक्यमा प्रयोग गर :
खाँचो, मौका, निम्तो, आश्चर्य, अन्नपात, प्रतिज्ञा
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The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important

Hershey and chase confirmed that dna, not protein, was the genetic material. how do the results of their two experiments support this conclusion?

Which of the following can be assumed about the layers in areas 2 and 4