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7th Grade - Vernon Independent School District
7th Grade - Vernon Independent School District

... Primary Succession- begins in an area that has not been previously occupied by a community (exs-exposed rock); there is no soil Secondary Succession- begins on an area where a community has previously existed; is on soil Pioneer Species- first species to begin growing in an area (moss & ...
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... Darwin’s Observations • Amazed by the number of different types of plants and animals he saw on his travels…..DIVERSITY! • Puzzled by where different species lived and did not live. • Noticed all organisms had traits to help them survive in their environment. ...
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Document

... 14. Describe the Snowshoe Hare / Canadian Lynx relationship. 15. This will be an extra credit question – What is the paradox of enrichment? 16. Define alpha (α), beta (β) and gamma (γ) diversity. How are they related to one another? 17. What is species richness? What is Biodiversity? 18. Create a fl ...
Biomes and Biodiversity Notes
Biomes and Biodiversity Notes

... Biomes and Biodiversity O: We will explore the characteristics of different biomes and how biodiversity can affect those biomes. species – a group of organisms that are closely related and can mate to produce fertile offspring. population – a group of organisms of the same species that live in an ar ...
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Organisms that eat only other animals

Chapter 1 community ecology
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NAME: Energy Flow in Ecosystems Vocab: Photosynthesis:

... 1. Energy is said to flow in a “one-way stream” through an ecosystem. In your own words, describe what that means. __________________________________________________________________________________________________ ______________________________________________________________________________________ ...
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Vocabulary for test on 3/16/15

... which one organismbenefits and the other is generally harmed. Commensalism A symbiotic relationship between two organisms of different species in which one derivesbenefit without harming the other. Predation a relationship between two species of animal in a community, in which one (the predator) hun ...
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Food webs - The Science Bus Wiki

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the Human Impacts Powerpoint
the Human Impacts Powerpoint

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Competition Exclusion Principle

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Chapter 4

... C. Competition occurs when two or more individuals attempt to use an essential common resource such as food, water, shelter, living space, or sunlight i. Intraspecific competition occurs among individuals within a population ii. Interspecific competition occurs between species IV. The Ecological Nic ...
Introduction to Ecology
Introduction to Ecology

...  Resources that cannot be replaced or are being used much faster than they are forming. Example: Coal, oil, natural gas (fossil fuel) ...
EVOLUTION AND CHARLES DARWIN
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... How does evolutionary change happen?  1859 Darwin finally published “On the Origin of Species” In the book he proposed evolution happened through Natural Selection.  ____________________ = Organisms best suited to their environment will survive and reproduce How does natural selection cause evolut ...
biodiversity - Squarespace
biodiversity - Squarespace

... carbon dioxide and release oxygen into the atmosphere, which helps keep the environment healthy and fit for human life. Although we still have much to learn about the often complex function of ecosystems, and about which species perform critical roles, we know that if an ecosystem is altered in any ...
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Ecology – study of relationships between organisms and between

... 2. Community – all the interacting populations in a given location 3. Ecosystem – all members of a community plus the physical environment in which they live (living and non-living) 4. Biosphere – portion of earth in which living things exist; composed of many complex ecosystems, including H2O, soil ...
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Ecology notes - Bethlehem Central School District
Ecology notes - Bethlehem Central School District

... niche -- The portion of the environment which a species occupies. A niche is defined in terms of the conditions under which an organism can survive, and may be affected by the presence of other competing organisms. nitrogen fixation -- The conversion of gaseous nitrogen into a form usable by plants ...
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7th grade Science

... population reproduce at a constant rate, so that the larger a population gets, the faster it grows ...
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Notes: 14.1-2 PPT - Learn District 196

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Chapter 3 Ecosystems - Doral Academy Preparatory
Chapter 3 Ecosystems - Doral Academy Preparatory

...  Insects make up most of the known species  Perhaps 10–14 million species ...
Everything you need to know about Ecology
Everything you need to know about Ecology

... Competition: There is a limited amount of materials available in the ecosystem. Organisms must compete with each other in order to survive. Carrying Capacity: the number of organisms an ecosystem can support. The carrying capacity depends mostly on the availability of abiotic resources, as well as h ...
5-1 Ecology_Principles PPT LESSON
5-1 Ecology_Principles PPT LESSON

... D. Communities and Populations 1. Communities – all the ecosystem’s interacting biotic factors. 2. Communities may be broken down into smaller units called populations. a. Populations – A group of individuals that belong to the same species and occupy the same area and share common resources. i. Ea ...
Concept Check 15 - Plain Local Schools
Concept Check 15 - Plain Local Schools

... 3. Give an example of a reproductive barrier that may separate two similar species. 4. Describe conditions that could make a new island a likely place for adaptive radiation. 5. How does punctuated equilibrium relate to Darwin's theory of natural selection? Concept Check 15.2 1. How can evolution ex ...
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Ecology



Ecology (from Greek: οἶκος, ""house""; -λογία, ""study of"") is the scientific analysis and study of interactions among organisms and their environment. It is an interdisciplinary field that includes biology and Earth science. Ecology includes the study of interactions organisms have with each other, other organisms, and with abiotic components of their environment. Topics of interest to ecologists include the diversity, distribution, amount (biomass), and number (population) of particular organisms; as well as cooperation and competition between organisms, both within and among ecosystems. Ecosystems are composed of dynamically interacting parts including organisms, the communities they make up, and the non-living components of their environment. Ecosystem processes, such as primary production, pedogenesis, nutrient cycling, and various niche construction activities, regulate the flux of energy and matter through an environment. These processes are sustained by organisms with specific life history traits, and the variety of organisms is called biodiversity. Biodiversity, which refers to the varieties of species, genes, and ecosystems, enhances certain ecosystem services.Ecology is not synonymous with environment, environmentalism, natural history, or environmental science. It is closely related to evolutionary biology, genetics, and ethology. An important focus for ecologists is to improve the understanding of how biodiversity affects ecological function. Ecologists seek to explain: Life processes, interactions and adaptations The movement of materials and energy through living communities The successional development of ecosystems The abundance and distribution of organisms and biodiversity in the context of the environment.Ecology is a human science as well. There are many practical applications of ecology in conservation biology, wetland management, natural resource management (agroecology, agriculture, forestry, agroforestry, fisheries), city planning (urban ecology), community health, economics, basic and applied science, and human social interaction (human ecology). For example, the Circles of Sustainability approach treats ecology as more than the environment 'out there'. It is not treated as separate from humans. Organisms (including humans) and resources compose ecosystems which, in turn, maintain biophysical feedback mechanisms that moderate processes acting on living (biotic) and non-living (abiotic) components of the planet. Ecosystems sustain life-supporting functions and produce natural capital like biomass production (food, fuel, fiber and medicine), the regulation of climate, global biogeochemical cycles, water filtration, soil formation, erosion control, flood protection and many other natural features of scientific, historical, economic, or intrinsic value.The word ""ecology"" (""Ökologie"") was coined in 1866 by the German scientist Ernst Haeckel (1834–1919). Ecological thought is derivative of established currents in philosophy, particularly from ethics and politics. Ancient Greek philosophers such as Hippocrates and Aristotle laid the foundations of ecology in their studies on natural history. Modern ecology became a much more rigorous science in the late 19th century. Evolutionary concepts relating to adaptation and natural selection became the cornerstones of modern ecological theory.
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