Since adaptation is traditionally thought of as a genetically fixed trait, an adaptation can be plastic. Provide ecological examples why plasticity. And explain the examples of why plasticity described as an adaptive
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Since adaptation is traditionally thought of as a genetically fixed trait, an adaptation can be plastic. Provide ecological examples why plasticity. And explain the examples of why plasticity described as an adaptive
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- Phenotypic plasticity is the ability of an individual organism to express two or more genetically controlled phenotypes in response to environmental variation. Give an example and give some reasons why organisms depend on phenotypic plasticity instead of maintaining all their systems in a maximum sate of readiness at all times.Creation and presence of variation are directionless, but natural selection is directional as it is in the context of adaptation. Comment.Explain how natural selection can lead to adaptation.
- Describe the phenomenon in which two organisms occupying the same geographical area show the same strategies of adaptation.Which form of conditioning is used most for behavior modification? Why does this form work better? Why would Classical Conditioning help someone in their daily life functioning? Which form of conditioning would you most likely see in a classroom setting? Create your own examples of each form of conditioning. Be sure to include the following information in your answer. In addressing classical conditioning: Identify UCS, UCR, NS, CS, and CR. Discuss any stimulus generalization that you observed. Discuss any extinction and spontaneous that occurred. In addressing operant conditioning: Identify negative and positive reinforcements and punishments. Label the schedule of reinforcement or punishment.When discussing natural selection and behaviour, we often say that members of a species have certain behavioural traits because those traits are adaptive, in the sense that they increase inclusive fitness relative to alternative forms of those traits that have existed in the past. Instead of emphasizing the adaptiveness of behavioural traits, some biologists describe natural selection as a process that operates on nervous system traits, increasing the prevalence within a population of particular patterns of neural circuitry and neurobiological mechanisms. As an alternative to emphasizing either the behaviour or the nervous system, some biologists describe natural selection as a process that operates on genes; according to this perspective, certain forms of certain genes (ie., particular alleles) increase in prevalence within a population relative to alternative forms of those genes. Which, if any, of these three perspectives on natural selection and behaviour do you think is the most…
- To say that a feature is adaptive is unsatisfying unless we have some idea of what it is adaptive for: by what mechanism did it increase fitness? What is its function?How can behaviors be adaptive? Provide an example that includes support from the five tenants of evolution by natural selection: 1) overproduction of offspring, 2) variation in the population, 3) competition for resources, 4) adaptive advantage for some, and 5) reproduction for those who surviveUsing the concept of inclusive fitness (and kin selection), explain how altruistic behavior (e.g. where an individual protects for another, even at their own expense) can evolve by natural selection? Make sure to explain what inclusive fitness is. (remember the concentric circles on the slide)
- . Hamilton suggests altruistic behaviors are favorable when A. cost/benefit is greater than the coefficient of relationship B. cost/benefit is less than the coefficient of relationship C. benefit/cost is less than the coefficient of relationship D. None of the above .Hamilton's rule (where r is the degree of relatedness, B is the benefit to the recipient, and C is the cost to the altruist) predicts that natural selection should favor altruistic acts under certain circumstances. Which of the following circumstances are unlikely to lead to selection favoring altruism? A. B is small B. C is large C. r is small D. All of the above If the last slice of pizza is worth 4 to you and is worth 7 to your mother, then according to Hamilton's rule A. you should take the last slice of pizza. B. you should give the last slice of pizza to your mother.. C. you should cut the last slice of pizza in half and take half for you and give half to your mother.. D. None of the above, Hamilton's rule cannot be…Which of the following is the degree of an organism’s adaptation to an environment, as measured by an individual’s relative genetic contribution to future generations? Fitness Lineage AdaptationWhich of the following statements about ADAPTATION are TRUE? (Identify ALL that are TRUE) Select 3 correct answer(s) Question options: Adaptations include PHENOTYPE changes within a species or population, in response to changing environment Adaptations include changes in GENE EXPRESSION within individuals, making individuals better suited to changes in environmental conditions Adaptations include GENOTYPE changes within a species or population, making individuals better suited to a particular environment Adaptations include GENOTYPE changes within a species or population, in response to changing environment Adaptations include PHENOTYPE changes within an individual, making that individual better suited to a particular environment