Senin, 07 Desember 2009
Senin, 06 Juli 2009
grade nine
The human excretory system consist of :
1. Urinary system
a. Kidneys
b. ureter
c. Bladder
d. Urethra
2. Skin
3. Liver
4. Lungs
You can click here to be more
1. Urinary system
a. Kidneys
b. ureter
c. Bladder
d. Urethra
2. Skin
3. Liver
4. Lungs
You can click here to be more
Rabu, 25 Maret 2009
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