evolution definition science
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evolution evolution. the process of development in which an organ or organism becomes more and more complex by the differentiation of its parts; a continuous and progressive change according to certain laws and by means of resident forces. convergent evolution. the development, in animals that are only distantly related, of similar structures or functions in adaptation to similar environment. divergent evolution. the development of different characteristics in animals that were closely related in response to being placed in different environments.
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What is Comparative Anatomy? - Definition & Examples One form of that evidence is comparative anatomy - but we'll get to that later. Evolution is defined as a genetic change in a population over time. When organisms reproduce, some of their genes get shuffled or mixed around. This is why offspring look different from their parents.
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- organic evolution the origin and development of species; the theory that existing organisms are the result of descent with modification from those of past times. (ĕv′ə-lōō′shən, ē′və-).
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What is evolution? But in its scientific sense, a theory is a tested and well-confirmed explanation for a set of observations. The observations explained by the theory of evolution come primarily from the fossil record, comparative morphology, biogeography, and now most importantly, genetics.
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evolution Darwin's theory of evolution by natural selection assumed that tiny adaptations occur in organisms constantly over exceptionally long periods of time. Gradually, a new species develops that is distinct from its ancestors.volution. n. 1. (Biology) biology a gradual change in the characteristics of a population of animals or plants over successive generations: accounts for the origin of existing species from ancestors unlike them. See also natural selection.
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chemical evolution chemical evolution in Culture Expand chemical evolution definition The formation of complex organic molecules from simpler inorganic molecules through chemical reactions in the oceans during the early history of the Earth; the first step in the development of life on this planet.
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Meaning of âevolutionâ in the English Dictionary uk ​ /ˌiːvəˈluːʃən/ us ​. › a gradual process of change and development: the evolution of sth The evolution of modern management began in the last decades of the nineteenth century. evolution from sth to/into sth As CEO he has overseen the company’s evolution from a small agency into a top-rated global firm.
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Timeline of the evolutionary history of life In biology, evolution is any change across successive generations in the heritable characteristics of biological populations. Evolutionary processes give rise to diversity at every level of biological organization, from kingdoms to species, and individual organisms and molecules, such as DNA and proteins.
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Human evolution Human evolution. Human evolution is the lengthy process of change by which people originated from apelike ancestors. Scientific evidence shows that the physical and behavioral traits shared by all people originated from apelike ancestors and evolved over a period of approximately six million years.
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- MISCONCEPTION: Evolution is a theory about the origin of life. CORRECTION: Evolutionary theory does encompass ideas and evidence regarding life's origins (e.g., whether or not it happened near a deep-sea vent, which organic molecules came first, etc.), but this is not the central focus of evolutionary theory.
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The modern genetic definition of biological evolution is? Evolution helps us to understand the history of life.http://evolution.berkeley.edu/evos... Biological evolution is defined as any genetic change in a population that is inherited over several generations. These changes may be small or large, noticeable or not so noticeable. http://biology.about.com/od/evolution/a...iological evolution is defined as the change in allele frequencies (where alleles are versions of the same gene that differ in their base sequence) within populations (Freeman and Heron, 2004) http://www.calstatela.edu/faculty/pnargu...
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Visual Synonyms of evolution Noun. 1. evolution-a process in which something passes by degrees to a different stage (especially a more advanced or mature stage); the development of his ideas took many years; the evolution of Greek civilization; the slow development of her skill as a writer. development.
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- In this section, we define evolution as it is understood to modern biology and as it applies to ecology. Evolution is defined as the change in the inherited traits of a population of organisms through successive generations.When living organisms reproduce, they pass on to their progeny a collection of traits.ature Education Knowledge 3(10) :6. Evolution describes changes in inherited traits of populations through successive generations. To fully understand the science of ecology, one must first be able to grasp evolutionary concepts.
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Evolution Adaptation is one of the two main processes that explain the diverse species we see in biology, such as the different species of Darwin's finches. The other is speciation (species-splitting or cladogenesis), caused by geographical isolation or some other mechanism.
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Evolution Evolution is a scientific theory used by biologists. It explains how living things change over a long time, and how they have come to be the way they are. Earth is very old. By studying the layers of rock that make up Earth's crust, we can find out about its past. This kind of research is called historical geology.
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Organic Evolution Summary 1 Organic evolution refers to the slow and gradual process by which living organisms have changed from the simplest unicellular form to the most complex multi-cellular forms that are existing today.  Organic evolution primarily involves modifications in the existing organisms and the inheritance of these modifications.
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What is a modern definition of evolution? any process of formation or growth; development: the evolution of a language; the evolution of the airplane. a product of such development; something evolved: The exploration of space is the evolution of decades of research. Biology.
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Is evolution a fact or theory? Evolution is an observed fact. Natural selection is the theory that *explains* that fact. In other words, when you understand that the word 'evolution' means 'change in the heritable properties of a population or species ... we can *measure* that change, so evolution is an observed fact. And natural selection is the theory that explains the fact of evolution ... WHY species change over time.
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- evolution (redirected from Evolution (biology)) Also found in: Dictionary, Medical, Legal, Encyclopedia.
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Evolution Evolution is change in the heritable characteristics of biological populations over successive generations. Evolutionary processes give rise to biodiversity at every level of biological organisation, including the levels of species, individual organisms, and molecules. Repeated formation of new species, change within species, and loss of species throughout the evolutionary history of life on Earth are demonstrated by shared sets of morphological and biochemical traits, including shared DNA seque
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An  Online Introduction to Advanced BiologyTerms  and Concepts Evolution is a change in type over time. It connects back to that human compulsion to label and categorize things, combined with a knowledge of how the world of the past was different than todays world. All sorts of things can evolve, so this may be the feature of Life found most often in things that are not alive.
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What do scientists mean when they call evolution a theory? Like gravity and plate tectonics, evolution is a scientific theory. In science, a theory is the most logical explanation for how a natural phenomenon works. It is well tested and supported by abundant evidence. It means quite the opposite from our informal use of the word theory, which implies an untested opinion or guess. As a scientific theory, evolution enables scientists to make predictions and drives investigations that lead to new kinds of observable evidence.
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- › a gradual process of change and development. › biology Evolution is the process by which the physical characteristics of types of creatures change over time, new types of creatures develop, and others disappear. (Definition of “evolution” from the Cambridge Academic Content Dictionary © Cambridge University Press)
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Difference Between Evolution and Revolution The dictionary meaning of evolution is “gradual development of something or a gradual process in which something changes from one stage to another.” In other words, evolution is a process in which something passes through different stages, generally progressive, over a period.
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- Geologic evolution refers to a system of changes within a geological system. An example would be studying how a specific area has changed from ocean to mountains to desert over a period of time.
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evolution Define evolution: descent with modification from preexisting species : cumulative inherited change in a population of… — evolution in a sentence descent with modification from preexisting species : cumulative inherited change in a population of organisms through time leading to the…