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15 and 16 vocab
15 and 16 vocab

... Relative age: is the age compared to that of other fossils Absolute age: when scientists estimate the age of strata Biogeography: the study of locations of organisms around the world Homologous structure: anatomical structures that occur in different species and that originated heredity from a struc ...
student notes
student notes

... – The chemosynthetic bacteria support a diverse community of organisms. ...
Evolution - Scott County Schools
Evolution - Scott County Schools

... similar to modern species. On the Galapagos Islands, he noticed variations among plants/animals of the same type in South America. ...
Ecosystems and Population Change
Ecosystems and Population Change

...  Ecology – is the study of interactions between organisms and their living and non-living environments. ...
Abiotic Factor
Abiotic Factor

... # of individuals divided by the area in which they live ...
Natural Selection - Madison County Schools
Natural Selection - Madison County Schools

... Organisms produce more offspring than can survive. Genetic Variation - Individual organisms in a population have slight variations or adaptations. Individuals struggle to survive, those with adaptations best suited to the environment are more likely to survive. Survivors pass on genes for the adapta ...
Ch.2-1 PPT - Nicholas County Schools
Ch.2-1 PPT - Nicholas County Schools

History of Evolution
History of Evolution

... (ladder of Nature) – categorized organisms into a linear hierarchy • Until 1700’s creationism was unchallenged ...
File
File

... • Plants use nutrients in the soil to grow • Nutrients are transferred through food chain • Dead and waste of organisms are recycled and put back into the soil by decomposers (Bacteria and Fungi) ...
Ecology Unit UPCO
Ecology Unit UPCO

...  Competition occurs when there is a struggle for the same limited resources.  Competition may eventually cause one species to become extinct.  Competition usually establishes one species per niche in a community. ...
Genetics
Genetics

... 4. Explain the difference between analogous, homologous and vestigial structures. Give an example of each. Homologous structure – structures that have similar evolutionary origin and structure but are adapted for different purposes. Example: bat wing and human arm Analogous structure – structures th ...
Biology 4th MP Quarterly Exam Study Guide Name: Directions
Biology 4th MP Quarterly Exam Study Guide Name: Directions

... of the tortoises on the Galapagos Islands)? 4. Explain how environment can cause a shift in the phenotype of a species (think of the black and white pocket mice in the desert). 5. What are the sources of genetic variation in a species? 6. Which produces more genetic variation: sexual or asexual repr ...
Ecological Concepts
Ecological Concepts

... Factors in Ecosystems ...
Natural selection
Natural selection

Ch52-56MustKnows-Ecology Review
Ch52-56MustKnows-Ecology Review

... limit growth and are described as logistic, competition for resources contribute to density dependent population regulation) 9. Human activities impact ecosystems on local, regional, and global scales (increase in human population have impacted habitats of other species which reduced the population ...
chapter 3 notes - Flushing Community Schools
chapter 3 notes - Flushing Community Schools

... – For example: Think about soil. How could soil affect a community? ...
Darwin`s Theory
Darwin`s Theory

... James Hutton and Charles Lyell • Both were Geologists and knew the Earth was Millions of years old, not thousands as most believed at that time. • Both knew forces shaped the Earth over long periods of time • Lyell said that the same forces that worked on shaping the Earth in the past were still ha ...
EOCT STUDY GUIDE: ECOLOGY
EOCT STUDY GUIDE: ECOLOGY

... a. The type of community in which a species occurs. b. Overlap in resource use between two species. c. The sum total of use by a species of the biotic and abiotic resources in its environment. d. An Interspecific interaction in which one species lives on or in another species. e. A combination of sp ...
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Community Ecology

... predator that consumes both, causing one species to have a lower population size than the other.  must always look at underlying ...
Biodiversity, Human Impact, and Conservation
Biodiversity, Human Impact, and Conservation

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... d) All food chains begin with a g…………….. p………………… ...
Unit_7__8_Review_Questions_bio
Unit_7__8_Review_Questions_bio

... 50. What is the combined portions of Earth in which all living things exist? (biosphere) 51. What are living factors in the environment called? (biotic) 52. What is the branch of biology dealing with interactions among organisms and the environment? (ecology) 53. What is the change in a species over ...
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Ecosystem Services

... 50% Flowering sps 42% Terrestrial Vertebrates sps ...
Darwins Theory 7.1 Life Science
Darwins Theory 7.1 Life Science

... • Pigeons to get more tail feathers • Darwin thought this type of breeding might happen in nature but what was this process? ...
Chap 13 PP Notes
Chap 13 PP Notes

... 2. In a particular environment, some individuals of a ___________ or _________ are better suited to survive (as a result of variation) and have more offspring (natural selection). 3. Over time, the _________ that make certain individuals of a population able to ________ and _______ tend to spread in ...
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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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