[1]

[2]

[3]

[4]

[5]

[6]

[7] [8]

[9]

[10]

[11]

[12] [13]

[14]

[15]

[16]

[16]

[17]

[18]

[19] [20]

[21]

[22]

Bibliography:-H. Colledge “What is Columnar Epithelium?’ WiseGeek http://www.wisegeek.com/what-is-columnar-epithelium.htm (5/5/11)-“Red Blood Cell” Kids Encyclopaedia http://encyclopedia.kids.net.au/page/re/Red_blood_cell (5/5/11)-”Myelin” Wikipedia http://en.wikipedia.org/wiki/Myelin#Function_of_myelin_layer (5/5/11)-Jacon Queen “What is a Nerve Cell?” WiseGeek 28 Feb 2011 http://www.wisegeek.com/what-is-a-nerve-cell.htm (5/5/11)-Nikki Foster “What is a Fat Cell?” WiseGeek http://www.wisegeek.com/what-is-a-fat-cell.htm (5/5/11)- S.E Smith “What is Sperm?” WiseGeek 28 Feb 2011 http://www.wisegeek.com/what-is-sperm.htm(5/5/11)-“Cell Specialisation and Organism Organisation” A Level Notes http://alevelnotes.com/?id=150&tree=4(5/5/11)-Richard Steane “Cell Structure” BioTopics http://www.biotopics.co.uk/life/cells.html (5/5/11)-“Guard Cell” Encyclopedia.com http://www.encyclopedia.com/topic/guard_cell.aspx#1-1O6:guardcell-full (5/5/11)-Nancy G Debgler “Cells, Specialised Types” Novel Guide http://www.novelguide.com/a/discover/plsc_01/plsc_01_00064.html (5/5/11)-Susan T. Rouse “Anatomy of Plants” Biology Reference http://www.biologyreference.com/A-Ar/Anatomy-of-Plants.html (5/5/11)-“Euglena” MCWDN http://www.mcwdn.org/Animals/Euglena.html (5/5/11)-“Ground Tissue” Wikipedia http://en.wikipedia.org/wiki/Ground_tissue#Parenchyma (5/5/11)