Question

What is needed when experimenting on humans

Answer 1

Since you do not indicate what type of experiment you might be performing, I cannot give you a complete answer. Beside all the requirements for <I>any</I> experiment, you have to consider the ethics of the experiment with humans or animals.

I searched Google under the key words "<I>experiment ethics humans</I>" to get these possible sources:

http://en.wikipedia.org/wiki/Human_experimentation
http://www.pcrm.org/resch/humres/humanexperiments.html
http://www.rbs2.com/humres.htm
http://wisdomtools.com/poynter/codes.html

I hope this helps. Thanks for asking.

Answer 2

.elmhurst.edu/~chm/vchembook/5900verviewmet.html on June 6, 2011.

Answer 3

that a negative emonrvinent (yelling. depression, darkness) inhibits growth while a positive one (talking to thep plants) helps it. Keep all the variables the same except the emonrvinent. Use a neutral emonrvinent as your middle ground and and study how this may affect the plants.