An ecosystem is a group of connected elements (biotic and abiotic) that are formed by interaction of the community with their environment. A community is living organisms (biotic) that share a common environment. It doesn’t include abiotic or environmental factors. An example of Adaptations Other than the fact that fish could breathe underwater‚ the gills that fish have are able to separate the salt from the saltwater‚ enabling them to be able to drink clean water. Animals deep in the ocean
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BIOENERGETICS ENERGY FLOW AND NUTRIENT CYCLING Ecosystem • It is an area which is self contained and life supporting. • It contains biotic (including plant‚ animal and microorganisms) and abiotic or physical factors (including nutrient cycling). • Examples include: coral reefs‚ deserts‚ savannahs and rain forests. • Several habitats and the communities associated with them make up an ecosystem. http://www.bloggersbase.com/images/uplo aded/original/c622477c9e5a5d2040c71563 31f799b10498611d.jpeg
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nature of energy flow (b) Explain how energy losses occur along food chains‚ and discuss the efficiency of energy transfer between trophic levels (c) Describe and interpret pyramids of numbers and biomass (d) Describe how carbon is cycled within an ecosystem (e) Use simple ecological field techniques such as quadrat and line transect sampling (f) Explain how the concept of sustainability applies at a local‚ regional‚ national and global level (g) Evaluate the effects of - Water pollution by sewage and
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understand the interactions of the biosphere with different types of environments; 247 GEOGRAPHY MODULE - 5 The domain of Life on the Earth Biosphere appreciate the importance of balance‚ inter-dependance and energy flow in different ecosystems; identify
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Pollution is the introduction of contaminants into a natural environment that causes instability‚ disorder‚ harm or discomfort to the ecosystem i.e. physical systems or living organisms.[1] Pollution can take the form of chemical substances or energy‚ such as noise‚ heat‚ or light. Pollutants‚ the elements of pollution‚ can be foreign substances or energies‚ or naturally occurring; when naturally occurring‚ they are considered contaminants when they exceed natural levels. The major forms of pollution
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CHAPTER 1 : A LOCAL ECOSYSTEM What is an ecosystem? Characteristics? The size of a population of organisms? Factors for this variation? Environmental factors? An ecosystem is any environment containing living organisms that interact with each other and with the non-living parts of the environment. Largely self-sustaining. - materials and energy are exchanged via food webs. - any size. (eg. a pond‚ a forest‚ a desert or a piece of bushland.) Does not
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environment ➢ Abiotic factors –temperature and water ➢ Microclimate – a classification at the small scale variation ➢ Dispersal – movement away fro origin ➢ Macroclimate – a classification at the global and regional level ➢ Parasitism – organisms like bacteria that enter a host‚ living organism where a parasite may live ➢ Competing – Two species compete with another species for resources such as food‚ water‚ or territory ➢ Biomes – major types of ecosystems that occupy
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will its consumers the zooplankton die and so will the other fish that eat the zoo plankton such as crustaceans . Marine life could not exist without plankton . Scientist often times use ecological models to help them represent parts of an ecosystem and to help them understand environmental interactions or even make predictions. Theses models are then tested by comparing them to observations from the real world. Ecological models can help with environmental problems by providing possible solutions
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important contribution the the environment because it affects the biotic and abiotic factors in the particular environment.
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This lab is an opportunity to observe‚ study‚ and learn about ecosystems and how the environment sustains life but in a much simpler and smaller scale which is called Eco Columns. The environmental conditions in the Eco Column could sustain life for several weeks‚ therefore over the course of the several weeks we will observe and study the interconnections between each ecosystems. A self sustaining requires components such as energy flow and chemical cycle. This experiment will evaluate our knowledge
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