B4.1.4 - Pyramids Of Biomass Flashcards
What do food chains not show?
The number of organisms involve din the chain and the amount of biomass transferred
What do pyramids of numbers show?
The population at each trophies level
In a pyramid of numbers, where is the producer?
At the bottom
Why can sometimes the pyramid of number diagram not be pyramid shape?
It does not take into account the size of the organism, only the amount of organisms
Why are pyramids of biomass not usually inverted?
It takes into account the size of all the organisms and the number of them if you plot the biomass
How do you calculate the biomass at each trophic level?
Number of organisms * average mass of organisms
How do scientists calculate the mass of an organism?
Calculate the dry mass of an organism, as water levels can vary, which means that you have to kill the organism
