Nitrogen Assimilation: N2, Nitrate, Ammonia and Symbiosis.

[@begumtopaloglu3325]

PERFECT. thank you so much you saved my life.

[@solomonyokamo796]

Majic presentation! Thank you so much, Professor

[@knifenoir9973]

What a nice class!

[@kkyogish]

Excellent. Can the addition of Fe accelerate denitrification reaction in a pond

[@nikolinajanjic4761]

Thank you so much, it was very helpful!

[@jurassicworldfan5721]

Good

[@reywizland13]

thanks