Post on 31-Dec-2015
transcript
Levels of Organization in
Ecologyatommoleculeorganellecelltissueorganorgan systemorganismpopulationcommunityecosystem
Wikimedia Commons free use from NASA
Abiotic Factors
A bio tic
Not Life
Non living things such as:
Rocks, water, temperature, soil, light. Etc.
There are more
abiotic factors
that there are
biotic factors!!!
Populations vs. CommunitiesA population is a group of organisms, all of the same species, which interbreed and live in the same area at the same time
community -interacting populations All the living things that live together.
Trophic LevelEn
erg
y t
ravels
up
th
e
troph
ic levels
Only 10% of energy is transferred to the level above it.
Position that organisms occupy on the food chain or each step in the food chain
Did you know?
The directions of the arrows in a food web show which way the energy flows…not who eats who.
AutotrophProducers are usually
plants but not always!! They just have to make food from the sun (autotroph).
PhytoplanktonSolar powered Sea Slug
Auto troph
Self feeding
DecomposersDecomposers are mainly
bacteria & fungi. They break down dead organisms
Without them, we would be covered in dead organisms in no time at all!!!
ConsumerConsumers are
heterotrophs (get energy from eating other organisms)
Hetero troph
Different feeding
Tertiary Consumer
Tertiary consumers eat secondary consumers.
Tertiary consumer after eating the jackal.