what are the characteristics of kingdoms?

Answer 1

Since this is not my area of expertise, I searched Google under the key words "biology kingdoms classification" to get these possible sources:

http://en.wikipedia.org/wiki/Kingdom_(biology)
http://en.wikipedia.org/wiki/Biological_classification
http://www.ruf.rice.edu/~bioslabs/studies/invertebrates/kingdoms.html
http://waynesword.palomar.edu/trfeb98.htm
http://www.kidsbiology.com/biology_basics/five_kingdoms_life/classification1.php

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.

I hope this helps.