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Ecosystems

TermDefinition
Biotic relating to or resulting from living things, especially in their ecological relations.
Abiotic physical rather than biological; not derived from living organisms.
Ecosystems a biological community of interacting organisms and their physical environment.
Habitat the natural home or environment of an animal, plant, or other organism.
Organism an individual animal, plant, or single-celled life form.
population all the inhabitants of a particular town, area, or country.
Community a group of people living in the same place or having a particular characteristic in common.
Biosphere the regions of the surface, atmosphere, and hydrosphere of the earth (or analogous parts of other planets) occupied by living organisms.
producer a person, company, or country that makes, grows, or supplies goods or commodities for sale. "an oil producer"
consumer an organism that cannot produce its own food and must eat other plants and/or animals to get energy.
decomposer an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.
Herbivore an animal that feeds on plants.
Carnivoure an animal that feeds on flesh.
omnivoure an animal or person that eats food of both plant and animal origin.
scavenger organism that eats dead or rotting biomass, such as animal flesh or plant material.
Predator an animal that naturally preys on others.
Prey an animal that is hunted or killed by another animal for food.
Niche the role an organism plays in a community.
Biome an area classified according to the species that live in that location.
Terrestrial Ecosystem a land-based community of organisms and the interactions of biotic and abiotic components in a given area.
Deciduous Forest characterized by trees that lose their leaves at the end of each growing season.
Grassland generally open and continuous, fairly flat areas of grass.
Rainforest a hot, moist biome where it rains all year long.
Desert a landscape where little precipitation occurs and, consequently, living conditions create unique biomes and ecosystems.
Aquatic ecosystem oceans, lakes, rivers, streams, estuaries, and wetlands.
freshwater water containing less than 1,000 milligrams per liter of dissolved solids, most often salt
Pond a small body of still water formed naturally or by hollowing or embanking.
Lake a large body of water surrounded by land.
River/Stream A stream is a body of water that flows on Earth's surface. A river large natural stream of water flowing in a channel to the sea, a lake, or another such stream.
Saltwater ecosystem aquatic environments with high levels of dissolved salt.
Ocean a very large expanse of sea, in particular each of the main areas into which the sea is divided geographically.
Saltmarsh an area of coastal grassland that is regularly flooded by seawater.
Estuary a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea.
Food Chain a linear sequence of organisms through which nutrients and energy pass as one organism eats another
Primary consumer The organisms that eat the producers
secondary consumer largely carnivores that feed on the primary consumers or herbivores.
Tertiary consumer The organisms that prey on the secondary consumers
Trophic levels The position an organism fills in a food chain
Autotroph an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.
Heterotroph an organism deriving its nutritional requirements from complex organic substances.
Food Web consists of all the food chains in a single ecosystem.
Energy Pyramid a model that shows the flow of energy from one trophic, or feeding, level to the next in an ecosystem.
Competition the interaction of individuals that vie for a common resource that is in limited supply
Natural Resources materials from the Earth that are used to support life and meet people's needs.
Brackish somewhat salty or briny, as the water in an estuary or salt marsh, which is not as salty as the sea but saltier than a river:
Created by: Sawale
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