Please enable JavaScript.
Coggle requires JavaScript to display documents.
B17-Organisation of an ecosystem - Coggle Diagram
B17-Organisation of an ecosystem
Levels of organisation
photosynthetic organisms are the
producers of biomass for life on Earth-what is
biomass
?
draw
and
label a food chain of at least three types of organism
how do producers get their energy and what do they do with it?
explain the changes in numbers in predator-prey cycles using this graph
Sampling
what is meant by
distribution
?
what is meant by
abundance
?
Required practical activity 7
:
random sampling
using a
quadrats
to measure the population size of a common species in a habitat
Method
how do you improve the validity of your results?
Required practical activity 7:
non-random sampling
using a
belt transect
to measure the effect of an abiotic factor on the distribution of a species.
Method
how do you estimate
percentage cover
of a quadrat?
what is meant by '
validity
'?
Different materials cycle through the abiotic and
biotic components of an ecosystem
draw
and
label the
carbon cycle
draw
and
label the
water cycle
elements are cycled back to the start of the food chain by
decay
how do
microorganisms
return
carbon
to the atmosphere?
what do
microorganisms
return to the
soil
and what are they used for?
