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8th grade Ecology

Ecology and Environment

biosphere part of Earth that supports life (crust, atmosphere, & water)
biotic living or once living things of earth
abiotic non living things of earth
carrying capacity largest number of individuals of a particular species that an ecosystem can support
community all the populations of different species in an ecosystem
ecology study of interactions that take place among organisms and their environment
organisms living and nonliving things in an environment
energy pyramid shows amount of energy level at each feeding level in an ecosystem
food web model that shows the complex feeding relationships among organisms in a community
limiting factors restricts the size of a population (including predators, diseases, and droughts)
niche way an organisms survives in the environment - role or job in an area
populations organisms of the same species living in a community
chemosynthesis process in which producers make energy from chemicals
respiration chemical process where oxygen combines with food molecules (sugar), energy is released, and carbon dioxide and water are given off as wastes
photosynthesis chemical processes where energy is used to combine carbon dioxide and water, releasing sugar and oxygen
symbiosis close relationship between species, including mutualism, commensalism, and parasitism
parasitism one organism benefits - other harmed
commensalism one organism benefits - other is not affected
mutualism both organisms benefits
Created by: jackie_mulkey