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Science Final Review #2

Review for chapters 9, 10, 11, and 12

biospherea narrow zone on Earth in which all life exists.
ecologythe study of the interactions between organisms and their environment.
ecosystemwhere scientists divide the biosphere into smaller units.
biomethe largest of the ecosystems.
communitya group of plants and animals that live in a specific area.
limiting factorinsufficiant food, severe weather, availible space, predators, disease, and disastors.
habitata place where an organism normally lives.
consumers vs. producersproducers are where animals produce their own food nad consumers are where animals cannot produce their own food nad must get their food from eating plants or animals.
natural resourcesmaterials from Earth that humans use.
renewable vs. nonrenewable resourcesrenewable such a soil, water, forests, and food, can be replaced naturally and nonrenewable such as minerals, natural gas, oil, nad coal, are available in limited amounts and cannot be replaced.
conservationthe preservation and wise use of natural resources.
recyclinga process in which waste material is used to make new products.
fossil fuelformed from the remains of living organisms, mostly plants and animals that died in the flood.
pollutionthe introduction of unwanted material in the environment.
innate behaviornot learned but inherited from their parents.
learned behaviorrequires practice and must be learned.
instinctanother type of innate behavior. A set of complex responses to a stimulus.
cyclic behavioroccurs in response to a series of repeating changes in the environment.
social behaviorthe interactions animals have with each other.
symbiosisa type of close, long-term relationship between organisms.
teenage health risksdrug abuse, sexual abuse, domestic violence, gang-related violence, rape, mugging, eating disorders, depression, teen preganancy, STDs, and AIDS.
hereditary vs. environmenthereditary are challenges that result from and individual's gentic makeup and environmental are challenges that come from outside an individual.
ways to reduce riskask what-if questions and think ahead.

Beverly Brett

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