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9th Bio Chpt 3

9th Grade Honors Biology Chapter 3

TermDefinition
Biosphere part of Earth in which life exists including land, water, and air or atmosphere
Ecology scientific study of interactions among organisms and between organisms and their environment
Species a group of similar organisms that can breed and produce fertile offspring
Population group of individuals of the same species that live in the same area
Community assemblage of different populations that live together in a defined area
Ecosystem all the organisms that live in a place, together with their nonliving environment
Biotic Factor any living part of the environment with which an organism might interact
Abiotic Factor physical, or nonliving, factor that shapes the ecosystem
Climate average year-to-year conditions of temperature and precipitation in an area over a long period of time
Weather day-to-day conditions of the atmosphere, including temperature, precipitations, and other factors
Greenhouse Effect the process in which certain gases (carbon dioxide, methane, and water vapor) trap sunlight energy in Earth's atmosphere as heat
Biome a group of ecosystems that share similar climates and typical organisms
Canopy dense covering formed by the leafy tops of tall rain forester trees
Understory layer in a rain forest found underneath the canopy formed by shorter trees and vines
Humus material formed from decaying leaves and other organic matter
Taiga biome with long cold withers and a few months of warm weather; dominated by coniferous evergreens; also called boreal forest
Permafrost layer of permanently frozen subsoil found in the tundra
Photic Zone sunlit region near the surface of water
Aphotic Zone dark layer of the oceans below the photic zone where sunlight does not penetrate
Plankton microscopic organisms that live in aquatic environments; includes both phytoplankton and zooplankton
Wetland ecosystem in which water either covers the soil or is present at or near the surface for at least part of the year
Estuary kind of wetland formed where a river meets the ocean
Created by: EllyNicole11
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