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Science Unit C Ch 1

Chapter 1 Vocabulary

environment The surroundings in which an organism lives, which provide the specific things an organism needs.
biotic Relating to the living parts of an environment.
abiotic Relating to the nonliving parts of the environment.
habitat The part of an environment in which an organism lives.
population Organisms of the same species living together in the same environment.
community The populations living in the same environment at the same time.
ecosystem A community and the abiotic parts of its environment.
niche The role an organism plays in an ecosystem.
biome A region of the world that is defined by its climate and the unique plants and animals that live there.
deciduous forest A biome in which the dominant plants are broad-leaved trees that shed their leaves each fall.
grassland A biome where the dominant plants are grasses.
taiga A biome where winters are very cold and long and the dominant plants are conifers.
evaporation The change of water from liquid water to water vapor.
water cycle The movement of water through Earth's ecosystem.
transpiration The process by which plants lose water to the air.
condensation The process by which water vapor changes from a gas to a liquid.
precipitation The process by which water returns to Earth's surface, usually as rain or snow.
groundwater Water that soaks into the ground.
carbon cycle The flow of carbon dioxide and oxygen through Earth's ecosystems.
nitrogen cycle The movement of nitrogen through ecosystems.
reusable resources Resources that can be used again and again.
renewable resources Resources that can be replaced within a human life span.
nonrenewable resources Resources that cannot be replaced within a human lifespan.
Created by: mquay