Namaskar,

I know there are many people in sajha who are related to Microbiology. I need help urgently on following question numbers,  13,145,151,162,163,164,165,166,174,15,176

http://www.guamdiver.de/06_T-1/Term-1-Class/B-230/Postings/07-01-30-Web-Mid/07-01-30-web-mid.html

Many many thank in advance to all who will help me.