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  2. AP English Language and Composition - Wikipedia

    en.wikipedia.org/wiki/AP_English_Language_and...

    The College Board advises that students choosing AP English Language and Composition be interested in studying and writing various kinds of analytic or persuasive essays on non-fiction topics, while students choosing AP English Literature and Composition be interested in studying literature of various periods and mediums (fiction, poetry, drama ...

  3. Ecological stability - Wikipedia

    en.wikipedia.org/wiki/Ecological_stability

    Stable ecological systems abound in nature, and the scientific literature has documented them to a great extent. Scientific studies mainly describe grassland plant communities and microbial communities. [4] Nevertheless, it is important to mention that not every community or ecosystem in nature is stable (for example, wolves and moose on Isle ...

  4. Glossary of biology - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_biology

    This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...

  5. AP International English Language - Wikipedia

    en.wikipedia.org/wiki/AP_International_English...

    As APIEL is an Advanced Placement course, the examination structure is similar to other AP exams. AP exams were established in 1957; they have a long tradition and are widely accepted. [10] A study has shown that AP students score higher on standardized test scores than non-AP students. [15]

  6. Ecotone - Wikipedia

    en.wikipedia.org/wiki/Ecotone

    an ecocline is a variation of the physicochemical environment dependent of one or two physico-chemical factors of life, and thus presence/absence of certain species. [9] An ecocline can be a thermocline , chemocline (chemical gradient), halocline (salinity gradient) or pycnocline (variations in density of water induced by temperature or salinity).

  7. Alternative stable state - Wikipedia

    en.wikipedia.org/wiki/Alternative_stable_state

    The community context considers a relatively constant environment in which multiple stable states are accessible to populations or communities. This definition is an extension of stability analysis of populations (e.g., Lewontin 1969; Sutherland 1973) and communities (e.g., Drake 1991; Law and Morton 1993).

  8. AP Biology - Wikipedia

    en.wikipedia.org/wiki/AP_Biology

    Advanced Placement (AP) Biology (also known as AP Bio) is an Advanced Placement biology course and exam offered by the College Board in the United States. For the 2012–2013 school year, the College Board unveiled a new curriculum with a greater focus on "scientific practices".

  9. Coexistence theory - Wikipedia

    en.wikipedia.org/wiki/Coexistence_theory

    Coexistence theory attempts to explain the paradox of the plankton-- how can ecologically similar species coexist without competitively excluding each other?. Coexistence theory is a framework to understand how competitor traits can maintain species diversity and stave-off competitive exclusion even among similar species living in ecologically similar environments.