Organism Population Community Ecosystem Biome Biosphere
Organism Any living thing But…what is living? Living things must exhibit at least the first 5 of the following to be considered alive Composed of cells Organization Metabolism Reproduction Response to stimuli Growth
Population All the members of the same species that live in the same place at the same time What is a species? A species is a group of organisms that can mate to produce fertile offspring
Community A group of various species that live in the same place and interact with each other Only biotic factors Bio-= life -ic= pertaining to
Ecosystem All biotic and abiotic factors interacting in an area a=without bio=life ic=pertaining to Examples include coral reef, oak forest, large intestine of a cow
Biomes Large region represented by a specific climate and specific plants and animals Composed of many ecosystems Includes Tropical rainforest, Tundra, Taiga, Desert, Temperate forest, Grassland More on these later…
Biosphere The zone of life on earth