gFlashcards

physical or nonliving factors that shape an ecosystem

permanatly dark layer of the oceans below the photic zone

organisms that are attactched near the ocean floor

complex of terrestrial communities that covers a large area and is characterized by certain soil and climare conditions and particular assemblages of plants and animals

the biological influences on organisms within an ecosystem

the dense covering

average year after year condition of temperature and precipitation in a particular region

extends from the low tide mark to the outer edge of the continental shelf

one member of the association benefits and the other is neither helped nor harmed

no two species can occupy the same niche in the same habitat at the same time

trees or conifers that produce seed bearing cones and most have leaves shaped like needles

named for their coral animals

a tree that sheds its leaves during a particular season each year

tiny peices of organic material that provide food for organisms at the base of the estuarys food web

series of predictable changes in the physical community over time

wetlands formed where rivers meet the sea

natural situation in which heat is retained in earths atmosphere by carbon dioxide methane water vapor and other gases

an area where an organism lives

material formed from decaying leaves and other organic matter that makes soil feritle

named for their dominant organism-kelp, a giant brown algea