Food Webs and Pyramids

Question 1

what are food webs useful for?

Answer 1

understanding the links between the species in a community

Question 2

what are ecological pyramids used for?

Answer 2

to represent the relative amounts of organisms at each trophic level - they are ALWAYS drawn to scale

Question 3

what are pyramids of number?

Answer 3

these are draw to show the number of each organism counted in the ecosystem - they can be odd shapes due to the different masses of organisms

Question 4

what are pyramids of biomass?

Answer 4

these are drawn to show the total mass of the organisms in each trophic level - these are a more accurate way of looking at the relative amounts of organisms