1. Genetics: Re: What can genetically modifying plants do to the beings eating these plants?, Roy Costa, Faculty, Hospitality and Tourism Institute, Valencia Community College Sun Dec 23 16:20:02 2001
2. Botany: Re: Does the sun speed up the rate of decomposition of a banana peel?, Roy Costa, Faculty, Hospitality and Tourism Institute, Valencia Community College Tue Dec 1 20:41:08 2009
3. General Biology: Re: length of time fece germs live for, Roy Costa, Faculty, Hospitality and Tourism Institute, Valencia Community College Thu Jan 13 19:15:59 2005
4. Medicine: Re: Is it true that head lice will not infest colour-treated hair?, Roy Costa, Faculty, Hospitality and Tourism Institute, Valencia Community College Mon Jan 19 22:28:37 2004
5. Environment : Re: Is there a correlation between global warming and rainforest destruction?, Susan Letcher, Grad student, Ecology and Evolutionary Biology, University of Connecticut Sun Sep 2 16:47:54 2007
6. Agricultural Sciences: Re: How does vacuum sealing a fruit juice extract compare with pasteurizing?, Roy Costa, Faculty, Hospitality and Tourism Institute, Valencia Community College Sat Nov 13 14:28:39 1999
7. Astronomy: Re: a few grams short of a black hole?, Vladimir Escalante-Ramirez, Faculty Tue Mar 24 02:46:43 2009
8. Microbiology: Re: is there any way for harmful bacteria to get into ice cream?, Roy Costa, Faculty, Hospitality and Tourism Institute, Valencia Community College Tue Mar 23 15:41:37 1999
9. Microbiology: Re: Are Antibacterial soaps effective?, David Beck, MadSci Admin Mon Feb 22 09:50:53 1999
10. General Biology: Re: How affective are antibacterial soaps?, Roy Costa, Faculty, Hospitality and Tourism Institute, Valencia Community College Mon Jan 25 13:08:21 1999
11. Botany: Re: Could I interview a taxonomist who visits rainforest for their work?, Susan Letcher, Grad student, Ecology and Evolutionary Biology, University of Connecticut Fri Aug 5 15:34:01 2005
12. General Biology: Re: How long would it take for mold to grow on cottage cheese when refrigerated, Roy Costa, Faculty, Hospitality and Tourism Institute, Valencia Community College Sat Nov 25 13:30:04 2000
13. General Biology: Re: Is it unhealthy to drain fried food on newspaper?, Roy Costa, Faculty, Hospitality and Tourism Institute, Valencia Community College Sat Jul 30 09:18:35 2005
14. General Biology: Re: why do spots form on ripe bananas? what are they?, Roy Costa, Faculty, Hospitality and Tourism Institute, Valencia Community College Tue Oct 23 21:30:47 2001
15. Virology: Re: Is antibacterial soap better for ridding hands of viruses?, Roy Costa, Faculty, Hospitality and Tourism Institute, Valencia Community College Thu Oct 21 21:25:56 1999