...but there are many, many types of cells that do specialized things.

Using Google, look up some of the differences between Plant and Animal cells.  List as many as you can find.


You're comments will not show up until I have read them first, so do not worry if they do not automatically appear.

From left to right, this is a picture of a red blood cell, a platelet, and a white blood cell.  What do you already know about cells?  What do you want to learn about cells?  Based on what you do already know about cells, is there anything that you find totally fascinating?

http://www.wired.com/wiredscience/2010/10/oceanographer-seals/

Is it right for scientists to use animals to help them gain an understanding of whatever it might be that they are studying?

If you think it is not right, what are the alternatives?