One is wrong. I don’t know which one Big-horn sheep hunters often aim to killthe sheep with the biggest horns. Thebiggest horns tend to correlate withlonger-lived and larger male sheep. Basedon the hunters' preference to kill only thelarge horned sheep, over manygenerations, evolution will most likelyfavor which life history traits?largersizes, shorterspans, higherfecundity, andearliermaturityadultlifetime to

Over time, due to selective hunting targeting big-horn sheep with large horns, evolution is likely…

Answered: Big-horn sheep hunters often aim to…

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter12: Processes Of Evolution

Section: Chapter Questions

Problem 4CT

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House sparrows (Maya) were introduced to North America in 1852. Since that time thesparrows have evolved different characteristics in different locations. Sparrow populations inthe north are larger-bodied than sparrow populations in the south. This divergence inpopulations is probably at least partly a result of natural selection: larger-bodied birds canoften survive lower temperatures than smaller-bodied birds can. Colder weather in the northmay select for larger-bodied birds. What type of evolution based on natural selectionaccounts for this observation? Explain your answer.
Full or partial limblessness has evolved many times invertebrates (snakes, lizards, manatees, whales). Do youexpect the mutations that occurred in the evolution oflimblessness to be in the coding or noncoding sequencesof toolkit genes? Why?
Abobrding te Oarwin, seusseledion can plan he evolution ot costly survival decrensing traits Explain the alternative theories for the evolution of female preference for exaggerated male traits. Female choice Sometimes the attributes chosen by temales male obvioun sense jeg the site otanuptiaigift amounte parental care Butofen the adaptive dventage of seually prelered traits is not immedateyclear (e bright bolors. complex songs and dances) What is the good genes hypothesis? Convergenttendency forpreferng males with exaggerated traits "Why should femoles have o prefeirence for exaogenated rale traits Exaggerated traits may aptualy de diva chancesof survival in her male offspring How can femaie preference forexaggeratec male traits volve? Possible explanation for female prelerence for costly and survival reducing exaggerated male traits Good genes and healthy mate theornes The trait somehoe comelates h the maie's quaity healthy mate good genes) 2 The ait provides a females with genes for…
Recent reconstructions of evolutionary history are often dependenton assigning divergence in terms of changes in amino acid ornucleotide sequences. For example, a comparison of cytochromec shows 10 amino acid differences between humans and dogs,24 differences between humans and moths, and 38 differencesbetween humans and yeast. Such data provide no information asto the absolute times of divergence for humans, dogs, moths, andyeast. How might one calibrate the molecular clock to an absolutetime clock? What problems might one encounter in such acalibration?
WRITE ABOUT A THEME: Organization You have seenmany examples of how form fits function at all levels of thebiological hierarchy. However, we can imagine forms thatwould function better than some forms actually found innature. For example, if the wings of a bird were not formedfrom its forelimbs, such a hypothetical bird could fly yet alsohold objects with its forelimbs. In a short essay (100–150words), use the concept of “evolution as tinkering” to explainwhy there are limits to the functionality of forms in nature.
What is NOT a product of evolution? O Adaptations O The great chain of being O Vestigial organs O Biodiversity
For some, science and religion seem to be at odds—especiallywith regard to the topic of evolution. Many evolutionary scientistshold religious beliefs. Like many religious people, these scientistsare able to reconcile their religion and their science. Others find thetwo ways of knowing to be in conflict. There is little doubt that aliterate citizen should explore the interface between science andreligion. Regarding evolution, there may be social controversy, butthere is no scientific controversy. 1) Do you think that the exploration of the interface betweenscience and religion should be a part of a science class? 2) why?
. The upper forelimbs of humans and bats have fairly similarskeletal structures, whereas the corresponding bones inwhales have very different shapes and proportions. However,genetic data suggest that all three kinds of organisms divergedfrom a common ancestor at about the same time. Which ofthe following is the most likely explanation for these data?(A) Forelimb evolution was adaptive in people and bats, butnot in whales.(B) Natural selection in an aquatic environment resulted insignificant changes to whale forelimb anatomy.(C) Genes mutate faster in whales than in humans or bats.(D) Whales are not properly classified as mammals.
Snakes evolved from ancestors who had the ability to walk. Some snakes, in fact, still have small pelvis and leg bones that are remnants from this ancestor. What are these caled? Vestiglal structure O Homologous strucre O Sympatric structure O Molecular homology In the 1890s, hunting reduced the northern elephant seal population to only 20 individuals. Due to conservation efforts, their population size today is above 30,000. Of what is this an example? Founder effect
the evolutionary relationship between mode O Humans are descended from chimpanzees O Humans and chimpanzees had a common ancestor several millior ears ago Humans and chimpanzees had a common ancestor several million years ago; sinc Chimpanzees are more closely related to gorillas than they are to humans QUESTION 2 Which of the following statements about hominins is FALSE? ALS Each hominin species on Earth was directly descended from the species that preced Multiple hominin species lived at the same time The genus homo arose about 2.5 million years ago We have now discovered a vast number of hominin fossils, allowing us to trace the e QUESTION 3 Which of the following are ways in which early hominins differed from apes? (select al
Which scenario would be a moder nexample of Lamarckianismm? A strain of houseflies resistant to insecticides emrges Squirrels separated by a river are found to be unable to interbreed Snails are found to have thicker shells generations after the introduction of a predator A son is bornw ith a portion of his right index finger mssing -- the same portion that was severed from his father's hand in an accident.
Over long periods of time, many cave-dwelling organisms have lost their eyes. Tapeworms have lost their digestive systems. VWhales have lost their hind limbs. How can natural selection account for these losses? The ancestors of these organisms experienced harmful mutations that forced them to lose these structures. Natural selection accounts for these losses by the principle of use and disuse. OIf the function of these structures has diminished over long periods of time, each of these structures presented greater costs than benefits. O Natural selection cannot account for losses, but accounts only for new structures and functions.

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