ecology review. habitat residence (where they live) ex. bird -nest in tree
TRANSCRIPT
Biotic or Abiotic?Plants growing in a field.
-BioticClimate of an ecosystem.
-AbioticDecomposing plant matter.
-BioticRocks in the soil.
-Abiotic
A __________causes a population to decrease in size.
-Limiting Factors-examples:
-climate-water-habitat-predation-pollution
Biotic OnlyBiotic only? Or Both Biotic and
AbioticPopulations
• A group of organisms of the same species
Biotic OnlyBiotic only? Or Both Biotic and
AbioticCommunities
• Populations living together in same area
Biotic and Abiotic!Biotic only? Or Both Biotic and
AbioticEcosystem
Communities, plus the abiotic factors, living together in same
area
Energy Pyramid
copyright cmassengale 17
If the producer in this pyramid yeilds 2100 kcals of energy, then the 2nd level consumer will get about…… 21 kcals!
CompetitionOccurs when 2 organisms try to use the same resource at the same place at the same time.
Ex. cheetahs and lions, since both species feed on the same prey