4.5c Pyramids

·         The basic simple description of feeding. So, food chain gives us simple diagram of whom eating who.

·         To quantify that we need to do this:

·         Pyramid of number= Number of organisms at each trophic level.

1 sparrow hawk

10 flycatchers

100 carrot fly

1000 carrot plant

       Then draw pyramid that shown in the video.

2.       Pyramid of biomass. Biomass is refer to “living material’ and the mass would be (g/kg). The problem of biomass is that the water content is very variable.

·         We would have a better understanding of mass of matter.

·         The third ideal pyramid of energy transferred. As we move up the pyramid the size shrinks. This kind of pyramid cannot be invested.

·         The pyramid of energy would require pyramid of number in between that is biomass.