Sources for Q4

 http://www.google.com.sg/imgres?q=population+of+birds&num=10&hl=en&gbv=2&biw=1440&bih=780&tbm=isch&tbnid=AC6MBGirS7KuMM:&imgrefurl=http://www.exploreafrica.net/blog/2011/11/jamala-madikwe/&docid=_2PPHk8clZvr-M&imgurl=http://www.exploreafrica.net/blog/www.exploreafrica.net/blog/wp-content/uploads/2011/11/Jamala-Madikwe-Waterhole-Elephants-12.jpg&w=787&h=525&ei=caO8T8itMs3nrAeiqKG6DQ&zoom=1&iact=hc&vpx=366&vpy=229&dur=433&hovh=180&hovw=270&tx=134&ty=97&sig=106194743800114364724&sqi=2&page=1&tbnh=130&tbnw=183&start=0&ndsp=26&ved=1t:429,r:8,s:0,i:85


http://www.google.com.sg/imgres?q=many+different+kinds+of+animals&hl=en&gbv=2&biw=1440&bih=780&tbm=isch&tbnid=a9-2ftNtkcqeBM:&imgrefurl=http://schools.woboe.org/teachlearn/webquests/rainforestexplorers&docid=T7URlTJyqtHHgM&imgurl=http://schools.woboe.org/TeachLearn/WebQuests/RainforestExplorers/PublishingImages/animals6.jpg&w=500&h=375&ei=hKW8T4j0FsbSrQeV1JGhDQ&zoom=1&iact=hc&vpx=1057&vpy=141&dur=438&hovh=194&hovw=259&tx=131&ty=149&sig=106194743800114364724&page=1&tbnh=146&tbnw=195&start=0&ndsp=29&ved=1t:429,r:20,s:0,i:110


http://www.google.com.sg/imgres?q=habitat&num=10&hl=en&gbv=2&biw=1440&bih=780&tbm=isch&tbnid=bK12lVIqa9giyM:&imgrefurl=http://www.macroevolution.net/giraffe-habitat.html&docid=Ajasc9YgBdp8vM&imgurl=http://www.macroevolution.net/images/ideal-giraffe-habitat-400px.jpg&w=400&h=300&ei=gaa8T-T4IYXYrQeah9TIDQ&zoom=1&iact=rc&dur=294&sig=106194743800114364724&sqi=2&page=1&tbnh=128&tbnw=173&start=0&ndsp=28&ved=1t:429,r:6,s:0,i:146&tx=99&ty=72


http://www.google.com.sg/imgres?q=habitat&num=10&hl=en&gbv=2&biw=1440&bih=780&tbm=isch&tbnid=bK12lVIqa9giyM:&imgrefurl=http://www.macroevolution.net/giraffe-habitat.html&docid=Ajasc9YgBdp8vM&imgurl=http://www.macroevolution.net/images/ideal-giraffe-habitat-400px.jpg&w=400&h=300&ei=gaa8T-T4IYXYrQeah9TIDQ&zoom=1&iact=rc&dur=294&sig=106194743800114364724&sqi=2&page=1&tbnh=128&tbnw=173&start=0&ndsp=28&ved=1t:429,r:6,s:0,i:146&tx=99&ty=72


http://www.google.com.sg/imgres?q=food+web&hl=en&sa=X&gbv=2&biw=1440&bih=780&tbm=isch&tbnid=Z2U7TTh-TGcpMM:&imgrefurl=http://library.thinkquest.org/J0113170/forest/food.html&docid=ojeQ_uhDMdbqXM&imgurl=http://library.thinkquest.org/J0113170/forest/images/foodweb.jpg&w=423&h=312&ei=QKi8T_fZBs3orQfg4NmsDQ&zoom=1&iact=rc&dur=231&sig=106194743800114364724&page=1&tbnh=125&tbnw=169&start=0&ndsp=29&ved=1t:429,r:4,s:0,i:145&tx=147&ty=102


http://www.google.com.sg/imgres?q=ecosystem+diagram&hl=en&gbv=2&biw=1440&bih=780&tbm=isch&tbnid=s0VT-kXkZTHBaM:&imgrefurl=http://maliszewski10.wikis.birmingham.k12.mi.us/Mali%2BECO%2B3&docid=WzrBmg4zkdEEQM&imgurl=http://maliszewski10.wikis.birmingham.k12.mi.us/file/view/ecosystem-diagram-wedged-tailed-eagle-kookaburra-bird-rabbit-mouse-grass-snake-grasshopper-food-web-illustration-arrows-image.gif/181105029/ecosystem-diagram-wedged-tailed-eagle-kookaburra-bird-rabbit-mouse-grass-snake-grasshopper-food-web-illustration-arrows-image.gif&w=376&h=254&ei=Jam8T4XxNcnZrQezlcyuDQ&zoom=1