tis is e last post of me le... after SA1 thn i start posting... must revise ma... anw u all also dun rly wan it.. n tink dun wan btr.. so maybe tis period of time copy hw hor!! :D sry shld b said to some ppl... ok? i mean understand loh...
HW:-sci WB act 5.4-sci wb-food web (grp wk)signing off...yong loong 
