Exaptation is the process of adaptation of a trait for a purpose other than what the trait was evolved for. For instance, an exaptation could be the use of feathers for mating displays or flight in birds which evolved feathers originally to keep warm.
Exaptation and the related term co-option describe a shift in the function of a trait during evolution. For example, a trait can evolve because it served one particular function, but subsequently it may come to serve another. Exaptations are common in both anatomy and behaviour. Bird feathers are a classic example.
Exaptation was proposed by Stephen Jay Gould and Elisabeth Vrba as a replacement for what they considered to be a teleologically loaded term ’pre-adaptation’.
Another example is the lungs of many basal fish, which evolved into the lungs of terrestrial vertebrates but also underwent exaptation to become the gas bladder, a buoyancy control organ, in derived fish.
What is an example of exaptation quizlet?
What is an example of exaptation? Why are feathers on a bird an exaptation? Feathers were probably adaptations for keeping the animal warm that were later used for flight, making feathers an exaptation for flying.
What does exaptation mean in biology?
Definition of exaptation : a trait, feature, or structure of an organism or taxonomic group that takes on a function when none previously existed or that differs from its original function which had been derived by evolution As for exaptations, we need look no further than feathers.
What is exaptation in psychology?
n. a trait that, having evolved to serve one function, is later used for another.
Is the Appendix an exaptation?
Exaptation enables us to see vestigial structures in modern species from a new perspective. Perhaps a given organ or structure has no current function today (e.g. the appendix), but through exaptation, it could one day take on a totally new and fitness-enhancing function in the future!
What is exaptation give an example?
Exaptation is the process of adaptation of a trait for a purpose other than what the trait was evolved for. For instance, an exaptation could be the use of feathers for mating displays or flight in birds which evolved feathers originally to keep warm. An exaptation is also known as pre-adaptation.
What is an example of an exaptation?
Exaptation is the process of adaptation of a trait for a purpose other than what the trait was evolved for. For instance, an exaptation could be the use of feathers for mating displays or flight in birds which evolved feathers originally to keep warm.
Is exaptation a type of adaptation?
While adaptation refers to a feature produced by natural selection for its current function (e.g. echolocation in bats), exaptation has been defined as a feature that performs a function but was not produced by natural selection for its current use (e.g. feathers that might have originally arisen in the context of …
What are some examples of exaptation?
Exaptation is the process of adaptation of a trait for a purpose other than what the trait was evolved for. For instance, an exaptation could be the use of feathers for mating displays or flight in birds which evolved feathers originally to keep warm.
What is the difference between an adaptation and an exaptation?
While adaptation refers to a feature produced by natural selection for its current function (e.g. echolocation in bats), exaptation has been defined as a feature that performs a function but was not produced by natural selection for its current use (e.g. feathers that might have originally arisen in the context of …
Why is exaptation important?
Exaptation is an important concept in helping us discuss and think about the evolution of the diversity of life. That is not to say that adaptations are not important. They are. We would all be pretty lousy at making a living if none of our traits were adapted for their current functions.
What is meant by exaptation?
Definition of exaptation : a trait, feature, or structure of an organism or taxonomic group that takes on a function when none previously existed or that differs from its original function which had been derived by evolution As for exaptations, we need look no further than feathers.
Why are feathers in birds considered an exaptation?
Exaptations are common in both anatomy and behaviour. Bird feathers are a classic example. Initially they may have evolved for temperature regulation, but later were adapted for flight. When feathers were first used to aid in flight, that was an exaptive use.
More Answers On What is an example of exaptation
Exaptation – Examples
There are many examples of exaptations. A classic example is how feathers, which initially evolved for heat regulation, were co-opted for display, and later co-opted for use in bird flight.
Exaptations – Understanding Evolution
An “exaptation” is just one example of a characteristic that evolved, but that isn’t considered an adaptation. Evolutionary biologists Stephen Gould and Elizabeth Vrba proposed vocabulary to let biologists talk about features that are and are not adaptations: Adaptation — a feature produced by natural selection for its current function (such as echolocation in bats, right).
Exaptation Definition & Meaning – Merriam-Webster
Examples of exaptation in a Sentence Recent Examples on the Web In 1982, Stephen Jay Gould and Elisabeth Vrba gave a name to this phenomenon: exaptation. — Quanta Magazine, 4 Sep. 2013 Feathers are a marvelous example of exaptation, or the process of acquiring functions for which they were not originally adapted. — Kate Morgan, CNN, 12 Dec. 2017
Exaptation – Wikipedia
Exaptations include the co-option of feathers, which initially evolved for heat regulation, for display, and later for use in bird flight. Another example is the lungs of many basal fish, which evolved into the lungs of terrestrial vertebrates but also underwent exaptation to become the gas bladder, a buoyancy control organ, in derived fish.
What is an example of an exaptation? – Answers
What is an example of an exaptation? Exaptation. The shift in the purpose of a trait during its evolutionary history. Recent findings on feathers rather well support feathers as exaptions. They …
Exaptation: How Evolution Uses What’s Available | Live Science
Research is also uncovering molecular examples of exaptation. For instance, genetic material left behind by viruses now plays an important role in mammalian pregnancy. While an exaptation is…
What are some of your favorite examples of exaptations? – Quora
One example: punch cards, which were developed in the early 19th century by French weaver Joseph Marie Jacquard to facilitate the weaving of complex silk patterns with mechanical looms. Decades later, these cards were adapted by the British polymath Charles Babbage to program the world’s first mechanical computer.
Exaptations and Spandrels – Evolutionary Psychology: Exploring Big …
Religion in this example also fails to be an adaptation for the reason that it is not stable and it is not something that will stay a permanent part of that organism for future generations. Exaptations Exaptation: Also known as co-option, describes a shift in the function of a trait during evolution.
Give an example of exaptation in humans. – Brainly.com
Jan 15, 2021As an example of an exaptation, Gould (1991) used the large size of the human brain and its function of enabling humans to produce speech. The large brain size, according to his argument, originally arose as an adaptation for some (unspecified) functions in humans’ ancestral past ( Gould, 1991 ).
Adaptations, Exaptations, and Spandrels – Social Sciences
A naturally occurring example of a by-product of adaptation is the human belly button. There is no evidence that the belly button, per se, helped human ancestors to survive or reproduce. A belly button is not good for catching food, detecting predators, avoiding snakes, locating good habitats, or choosing mates.
What are good examples of exaptation in the human brain?
Something that was an exaptation even in the deepest paleolithic? I assume the Broca area would make a good example, since it controls hand movement in primates and use of grammar and gestures in …
Definition and Examples of Exhortation – ThoughtCo
Glossary of Grammatical and Rhetorical Terms. Abolitionist and orator Henry H. Garnet (1815-1882). James U. Stead/Wikimedia Commons. An exhortation is a speech that attempts to encourage, motivate or incite an audience through strong emotional appeals. Here are some examples from famous works.
What Is Exaptation In Linguistics? – june29.com
Nov 25, 2021What Is An Example Of Exaptation? An adaptation of a trait for a purpose other than what it was originally developed for is known as an exaptation. Exaptations can occur when feathers are used for flight or display in birds that evolved feathers originally to keep warm during reproduction.
Exaptation – an overview | ScienceDirect Topics
An interesting example of exaptation is the independent selection by sheep, primate, and rodent lineages of Env expression from lineage-specific endogenous retroviruses for function in placental syncytiotrophoblast morphogenesis. At least one ultraconserved sequence in mammalian genomes has proved to be an ancient SINE whose multiple insertions …
Exaptation Definition & Meaning | Dictionary.com
Exaptation definition, a process in which a feature acquires a function that was not acquired through natural selection. See more.
Exaptation – Examples
Examples. There are many examples of exaptations. A classic example is how feathers, which initially evolved for heat regulation, were co-opted for display, and later co-opted for use in bird flight. Another example is the lungs of many primitive fish, which evolved into the lungs of terrestrial vertebrate but also underwent exaptation to …
What are some of your favorite examples of exaptations? – Quora
Answer: In a manner of speaking, evolution is a parsimonious process: It uses what is available. Biologists cite feathers as a one of the more conspicuous examples of how something selected by nature for one purpose is adapted for another – a process known as exaptation. ’ Biological evolution a…
Exaptations and Spandrels – Evolutionary Psychology: Exploring Big …
An exaptation can be explained through Gould’s two definitions An exaptation is a feature, now useful to an organism, that did not arise as an adaptation for its present role, but was subsequently co-opted for its current function; Exaptations are features that now enhance fitness, but were not built by natural selection for their current role
Exaptation – an overview | ScienceDirect Topics
An interesting example of exaptation is the independent selection by sheep, primate, and rodent lineages of Env expression from lineage-specific endogenous retroviruses for function in placental syncytiotrophoblast morphogenesis. At least one ultraconserved sequence in mammalian genomes has proved to be an ancient SINE whose multiple insertions …
What are good examples of exaptation in the human brain?
Something that was an exaptation even in the deepest paleolithic? I assume the Broca area would make a good example, since it controls hand movement in primates and use of grammar and gestures in …
Give an example of exaptation in humans. – Brainly.com
As an example of an exaptation, Gould (1991) used the large size of the human brain and its function of enabling humans to produce speech. The large brain size, according to his argument, originally arose as an adaptation for some (unspecified) functions in humans’ ancestral past ( Gould, 1991 ).
27 which of the following is an example of exaptation
See Page 1. 27. Which of the following is an example of exaptation? a. expressing a transcription factor in a new part of an embryo to give rise to a new structure in development b. the development of vertebrate jaws from the gill supports c. the mixing and matching of protein domains d. b and ce. all of the above. 28.
Chapter 14 BIO003 Flashcards – Questions and Answers – Quizlet
In this context, bony fins are an example of _____. an exaptation. Feathers in birds appear to have first been selected for as insulation but later conveyed a new advantage in helping create light aerodynamic surfaces. This switch in function is an example of _____.
Nici CH20 Broad Patters of Evolution Activity 2(1).docx
7) What is an exaptation? The organism below exhibit an exaptation? If so describe how it is an exaptation. Exaptation is an adaptation that results in co-opting for a different function. This dinosaur has feathers, but not for flight usage. They were an exaptation for birds, and other organisms, to be used for flight later on.
Bio Ch. 15 Flashcards | Quizlet
Feathers are an example of a/an _____; they originally evolved _____. A. homology; for flight B. exaptation; in anticipation of future use in the development of flight C. adaptation; for some other function and only later became adapted for flight D. exaptation; for some other function and only later became adapted for flight
Definition of Exaptation | Emergent Futures Lab
Examples of Exaptation. A wing is a great example of exaptation in nature. A wing can be sexy, ward off predators, keep eggs warm, and be used for flight. The wheel as an example of exaptation in innovation. The wheel is used for transportation, to generate power (watermill), or as a gear in an engine.
The Concept of Exaptation and Its Relevance in Modern Life
Exaptation is a concept in evolutionary biology which refers to the process in which an existing trait or feature changes its nature and function to serve a new purpose. The concept was proposed by the duo of Stephen Gould and Elisabeth Vrba back in 1982 to explain the fact that the current nature and function of a trait or feature could be …
Exaptation | Psychology Wiki | Fandom
An exaptation is a biological adaptation where the biological function currently performed by the adaptation was not the function performed while the adaptation evolved under earlier pressures of natural selection.Exaptations are common in the history of living things. For example, the gills of aquatic vertebrates function as respiratory organs, while the pharyngeal slits from which gill …
Is sensory bias an example of exaptation? – ResearchGate
Exaptation is the co-option of a biological trait from it’s original function into a new context. Sensory bias (biases inherent in a sensory system) evolve in order to convey an advantage to the …
What is exaptation? – Quora
Answer (1 of 2): Exaltation is the repurposing of some process or structure that evolved for a different use. My own favourite example is the human larynx, of which more later. For a structure or process to evolve through natural selection there must be incremental benefit. Some trait is express…
Resource
https://www.liquisearch.com/exaptation/examples
https://evolution.berkeley.edu/exaptations/
https://www.merriam-webster.com/dictionary/exaptation
https://en.wikipedia.org/wiki/Exaptation
https://www.answers.com/Q/What_is_an_example_of_an_exaptation
https://www.livescience.com/39688-exaptation.html
https://www.quora.com/What-are-some-of-your-favorite-examples-of-exaptations?share=1
https://kpu.pressbooks.pub/evpsych/chapter/exaptations-spandrels/
https://brainly.com/question/20687896
https://www.sscnet.ucla.edu/comm/haselton/webdocs/spandrels.html
https://www.researchgate.net/post/What_are_good_examples_of_exaptation_in_the_human_brain
https://www.thoughtco.com/exhortation-speech-term-1690618
https://www.june29.com/what-is-exaptation-in-linguistics/
https://www.sciencedirect.com/topics/neuroscience/exaptation
https://www.dictionary.com/browse/exaptation
https://www.liquisearch.com/exaptation/examples
https://www.quora.com/What-are-some-of-your-favorite-examples-of-exaptations?share=1
https://kpu.pressbooks.pub/evpsych/chapter/exaptations-spandrels/
https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/exaptation
https://www.researchgate.net/post/What_are_good_examples_of_exaptation_in_the_human_brain
https://brainly.com/question/20687896
https://www.coursehero.com/file/p3t89fp9s/27-Which-of-the-following-is-an-example-of-exaptation-a-expressing-a/
https://quizlet.com/449266643/chapter-14-bio003-flash-cards/
https://www.coursehero.com/file/155765319/Nici-CH20-Broad-Patters-of-Evolution-Activity-21docx/
https://quizlet.com/107069799/bio-ch-15-flash-cards/
https://emergentfutureslab.com/innovation-glossary/exaptation
https://www.clubstreetpost.com/2018/06/the-concept-of-exaptation-and-its-relevance-in-modern-life/
https://psychology.fandom.com/wiki/Exaptation
https://www.researchgate.net/post/Is-sensory-bias-an-example-of-exaptation
https://www.quora.com/What-is-exaptation?share=1