1
A series of organisms in which energy is transferred from one organism to another is ____
a food chain
10
biomass is ____
thte total amount of living tissue within a trophic level
The primary producers in the ocean are tiny floating algae called ____.
phytoplanktons
Which organisms convert dead material to detritus?
decomposers
The number of organisms increase as you go up in a pyramid of biomass. (T or F)
F
What is detritus?
dead organic material
Network of feeding interactions through which both energy and matter move is ____.
a food web
most of the energy that remains at each trophic level is released to the environment as ___
heat
What would happen if there were no decomposers?
nutrients would remain locked within dead orgnisms
What is a trophic level?
each step in a food chain or a food web
There is no limit to the no. of trophic levels. (T or F)
T
What are ecological pyramids?
models that show the relative amount of energy contained within each trophic level
Why does the amount of energy decrease as you go up in the pyramid?
because much of the energy acquired is used up in life processes
Give an example where the pyramid of numbers is opposite to the pyramid of mass
(last paragraph of p.122)