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Unit A / Ch. 4

Science Terms / Unit A / Chapter 4

TermDefinition
prediction an educated guess about what may happen in the future
herbivore a consumer that eats only plants or other producers
carnivore a consumer that eats only animals
omnivore a consumer that eats both producers(organisms that make their own food) and consumers(organisms that get energy from eating food)
decomposer an organism that obtains energy by consuming dead organisms and the wastes of living organisms
energy pyramid a model that shows how energy is used in a food chain or an ecosystem
respiration energy-producing process in which a cell combines oxygen with sugars and gives off carbon dioxide and water
pollution anything produced that harms the environment
competition a situation in which two or more organisms attempt to use the same resource
biome large geographic region with a particular kind of climate and community
6 World Biomes Tundra, Taiga, Temperate Deciduous Forest, Grassland, Tropical Rain Forest, and Desert
tundra the northernmost and coldest biome
permafrost ground that is permanently frozen
taiga forest biome just south of the tundra, characterized by conifers
temperate deciduous forest forest biome characterized by trees that lose their leaves each year
grassland biome characterized by few trees and many grasses
tropical rain forest biome that has much rainfall and high temperatures all year
desert biome with little rainfall and usually high daytime temperature
saltwater biome water biome that has a high salt content
plankton microscopic, free-floating organisms that serve as food for larger organisms
freshwater biome water biome that has a low salt content
estuary place where fresh water from rivers or streams mixes with saltwater from the ocean
Created by: lleahy
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