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- Ecalogical seleation Sexual selection What is ecological selection? How is it different from sexual selention torsurviva - Selection by the opposite sex - pormpetitive ad vantage Competition within males females predator avoidanoe selection? What kinds of traits result from ecological selection? Erirae Constraints on adaptive pertecton (optmali Why doesn't natural selection produce optimally adapted organisms? Oren ldaa NOT cop Adigsdon re om civep eb he numet n ognawihrntruclure and e . r e e Tw u n Ecological selection oeed .ha o hore cs Scanned vwith CamScannerocesses/Se are the same se two trees are NOT the same At some point in the past, foxes arrived in the Arctic (far northern latitudes) and we able to establish a population. Now, there is a white population of foxes that lives there. Which of the following was the primary change that occurred gradually over time in the Arctic fox population, eventually resulting in foxes with white fur? O The fur color of each individual fox within the population gradually changed. O The frequencies of foxes with different fur colors within the population changed. O Mutations occurred to meet the need of the fox population in the new environment. O Foxes that survived longest gained white fur in their old age, which they passed on to their offspring, tion 15Question 7 Identify the type of selection represented by this diagram Sedeconaganstanetene Pepulaon whersecton Orginal ton directional selection habitat isolation sexual selection stabilizing selection disruptive selection
- Question 4 The evolution of certain life history traits at the expense of another trait is called a O simploid O fecundity O trade-off O maximization A Moving to another question will save this response. 12 esc 文 # $ %The graph below represents the number of brown and green beetles collected in a particular ecosystem Change in Coloration of Beetle Population Green beetles Brown beetles Time (years) What is the change observed in the number of green and brown beetles in the population most likely due to? (15.13) O natural selection O selective breeding O a common ancestor O gene manipulation //olamiami.performancematters.com/ola/ola.jsp?clientCode=flMiamiDade# 4:10 PE O Type here to search 3/11/20 Number of IndividualsQUESTION 15 Which of the following does not change gene frequencies in populations? selection mutation migration diet O000
- QUESTION 3 Darwin's theory of natural selection explains: O The way life began. O The way evolution works at the genetic level. The way dinosaurs became extinct. O That traits within a breeding population that are adaptive to specific environmental circumstances become more numerous in that population over time.Fiure es tional From: "Why our flu vaccines can't keep up" Which one of the graphs above shows the frequency of trait variation in the original sparrow population - the population before the storm hit? O Figure A • Figure B O Figure Cudent Lab Riverwat x O Student Lab Riverwat x A Dashboard e' Theoretical Distributi X NUB- engagement as ure.com/courses/21405/quizzes/53484/take In a certain population (Niagara Gorge, Lewiston, NY) the allele for red striped (R) redback salamanders (Plethodon cinereus) is dominant to the unstriped grey (r) color allele. If this population of salamanders in Hardy-Weinberg equilibrium contains homozygous red salamanders (RR) at a frequency of 0.16, what is the frequency of the grey allele (r)? Edit View Insert Format Tools Table 12pt v Paragraph v BIU MacBook Pro I'm We &
- Question 63 Both genetic bottlenecks and the founder effect are examples of? O Gene flow O Genetic drift O Sexual selection O Non-random mating DELLmbers aferences A population that is in Hardy-Weinberg equilibrium does not experience any migration. How does this relate to evolution? * QOnline When individuals enter a population, adaptive radiation can occur. wsela Speciation only occurs when populations are completely isolated. ation Mogy Periods 1 and 2 When individuals enter or leave a population, the gene frequencies change. ng periods chool MP1, Highschool Highschool MP3, uchool MP4 O Migration interferes with nonrandom mating. Cion ting days Deer mice are usually found in the woods and are dark brown in color. The deer Tue Wed Thu Fri mice that live in the Sand Hills of Nebraska, however, have evolved a lighter coloring, the result of a change in one gene. How does this information illustrate natural selection? * Speciation occurs when groups are geographically isolated. 9:02 USQUESTION 18 This phenomenon causes a particular gene to be abundant in a gene pool even though it may not be adaptive: O natural selection O mutation O gene flow O genetic drift QUESTION 19 This phenomenon is an exchange of genetic material when two previously isolated populations of the same species come into contact: O natural selection O mutation O gene flow genetic drift QUESTION 20 How do new species arise, according to the theory of natural selection? O when an old species goes extinct, a new species arises to take its place O individuals in a population pass on new traits they have acquired during their lifetimes O two new species spontaneously branch off from ancestor populations from time to time O if a population is reproductively isolated in a sufficiently different ecosystem for an extended period of time, it will develop adaptations that will eventually render it incapable of interbreeding with its host population