Interdependence - predator/prey graph - pyramid biomass

I always found that students struggle to draw predator/prey sketch graphs. So this is a half done graph for them to complete. The worksheet has 2 identical pages so that you can print 2 pages on one to give A5 worksheets if you need to.
The powerpoint also includes a pyramid of biomass. I haven’t included this on the worksheet because it is good practise to be able to draw the levels correctly using a sharp pencil and ruler!