Flashcards › Biomes / Ecosystems

Abiotic non-living components of an environment Biotic living components of an environment Biome largest divisons of the biosphere Biosphere thin layer of air, land, water on/near Earth's surface in which all living things exist Community all populations of the different species that interact in certain areas/ecosystems Ecosystem a part of a biome where abiotic and biiotic components interact Habitat the place where an organism lives Niche special role an organism plays in an exosystem (including how it fits/contributes to its environment) Organism a living component Population all the members of a particular species within an ecosystem How would people be affected by climate changes in Permanent Ice biomes? Travel, safety, accessibility to communities, and hunting grounds would be affected Does the amount of predators increase in an ecosystem before or after the amount of prey? The amount of prey increases first Would a hare be located on the first or second trophic level? Second trophic level behavioural adaptation the things an organism does to survive in the unique conditions of its environment Commensalism One species benefits while the other is not harmed or helped Mutualism Both organisms benefit Symbiosis the interaction between members of two different species that live together in close association Parasitism One species benefits while the other is harmed Biomass the total mass of living plants, animals, fungi, and bacteria in a certain area Energy Flow the flow of energy from an ecosystem to an organism and from one organism to another organism Decomposition the breaking down of organic wastes and dead organisms Biodegration the action of living organisms such as bacteria to break down dead organic matter Food Chains show the flow of energy from plant to animal and from animal to animal Trophic Level Each step in a food chain Detrivores consumers that obtain their energy and nutrients by eating the bodies of small dead animals, dead plant matter, and animal wastes Food Webs show the feeding relationships within an ecosystem Food Pyramids show the loss of energy from one trophic level to another Review of science information involving biomes