EVOLUTION ASSESSMENT - FINCHESGalápagos Ground FinchesBetween 1973 and 1978, the population of ground finches (a type of small bird) on the Galápagos Islandsdecreased. Scientists made observations of the population throughout that time period. They recordedand graphed differences in the distribution of traits over time. The two sets of graphs below come fromthe data they collected.Beak Length for Ground Finches Observed in the Wet Seasons of 1973 and 1978Wet 1973: all finches# of finches30# of finches25201510503025201510512-010$4.980-8430.0-11.5-11.9Beak Length (mm)Source: inquiryHub35.0-39.940.0-44.912.5-12.913.0-13.413.5-13.914.0-Wing Length for Ground Finches Observed in the Wet Seasons of 1973 and 1978Wet 1973: all finches65.0Wing Length (mm)Source: inquiryHub70.0-74.9# of finches75.0-3025# of finches20105030252015O1050Wet 1978: all finches7.0-747.5-7.980-8.485-809.0-949.5-9.910.0-130.0-34.910.5-10.911.0-11.411.5-11.912.0-12.412.5-Beak Length (mm)Source: inquiryHubWet 1978: all finchesWing Length (mm)Source: inquiryHub13.0-13.413.5-13.914.0-75.0- Question 3.In the bottom pair of graphs about wing lengths, what is true about the total number of finches withshorter (35-45mm) and longer (60-75mm) wings over time?(circle the correct answer)A. Both shorter- and longer-winged finches decreased in number.B. Longer-winged finches decreased in number.C. Shorter-winged finches decreased in number.D. The number of both kinds of finches stayed about the same.

Name: EVOLUTION ASSESSMENT - FINCHESGalápagos Ground FinchesBetween 1973 an
Uploaded: 2024-03-20T06:43:04.000Z
Channel: Bartleby
Description: EVOLUTION ASSESSMENT - FINCHESGalápagos Ground FinchesBetween 1973 and 1978, the population of ground finches (a type of small bird) on the Galápagos Islandsdecreased. Scientists made observations of the population throughout that time period. They

Darwin saw that the finches on the Galapagos had a graduated range of beak sizes and forms and…

Science

Biology

Question 3. In the bottom pair of graphs about wing lengths, what is true about the total number of finches with shorter (35-45mm) and longer (60 - 75mm) wings over time? (circle the correct answer) A. Both shorter- and longer-winged finches decreased in number. B. Longer-winged finches decreased in number. C. Shorter-winged finches decreased in number. D. The number of both kinds of finches stayed about the same.

Question 3. In the bottom pair of graphs about wing lengths, what is true about the total number of finches with shorter (35-45mm) and longer (60 - 75mm) wings over time? (circle the correct answer) A. Both shorter- and longer-winged finches decreased in number. B. Longer-winged finches decreased in number. C. Shorter-winged finches decreased in number. D. The number of both kinds of finches stayed about the same.

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter54: Community Ecology

Section: Chapter Questions

Problem 16TYU: EVOLUTION LINK Competition is an important part of Darwins scientific theory of evolution by natural...

See similar textbooks

Similar questions

EVOLUTION LINK Competition is an important part of Darwins scientific theory of evolution by natural selection, and the evolution of features that reduce competition increases a populations overall fitness. Relate this idea to character displacement and resource partitioning in Darwins finches.
The long-leaf pine forest ecosystem once extended across 95 million acres of the southeastern US. However only 5 million acres now remain causing major declines in the Gopher tortoise population. Given this, what is expected to happen to overall diversity of species that depend on Gopher Tortoise burrows?a. increaseb. decreasec. stay the same
SCIENCE, TECHNOLOGY, AND SOCIETY Some people regardthe rapid population growth of less industrialized countries asour most serious environmental problem. Others think that thepopulation growth in industrialized countries, though smaller,is actually a greater environmental threat. What problems resultfrom population growth in (a) less industrialized countriesand (b) industrialized nations? Which do you think is a greaterthreat, and why?
Mountain gorillas are a highly endangered primate species, with 800 or so individuals surviving in the two remaining populations. A recent sampling of mountain gorilla genomes revealed a very low level of genetic diversity. Explain why a decline in genetic diversity often accompanies a decline in population size.
Iguana Decline In 1987, Martin Wikelski began a long-term study of marine iguanas in the Calapgos Islands. He marked iguanas on two islandsGenovesa and Santa Feand collected data on how their body size, survival, and reproductive rates varied over time. He found that because iguanas eat algae and have no predators, deaths usually result from food shortages, disease, or old age. In January 2001, an oil tanker ran aground and leaked a small amount of oil into the waters near Santa Fe. FIGURE 44.17 shows the number of marked iguanas that Wikelski and his team counted in their study populations just before the spill and about a year later. FIGURE 44.17 Shifting numbers of marked marine iguanas on two Galpagos islands. An oil spill occurred near Santa Fe just after the January 2001 census (orange bars). A second census was carried out in December 2001 (green bars). 3. Wikelski concluded that changes on Santa He were the result of the oil spill, rather than sea temperature or other climate factors common to both islands. How would the census numbers be different from those he observed if an adverse event had affected both Islands?
Iguana Decline In 1987, Martin Wikelski began a long-term study of marine iguanas in the Galpagos Islands. He marked iguanas on two islandsGenovesa and Santa Feand collected data on how their body size, survival, and reproductive rates varied over time. He found that because iguanas eat algae and have no predators, deaths usually result from food shortages, disease, or old age. In January 2001, an oil tanker ran aground and leaked a small amount of oil into the waters near Santa Fe. FIGURE 44.3 shows the number of marked iguanas that Wikelski and his team counted in their study populations just before the spill and about a year later. FIGURE 44.3 Shifting numbers of marked marine iguanas on two Galpagos islands. An oil spill occurred near Santa Fe just after the January 2001 census (orange bars). A second census was carried out in December 2001 (green bars). How much did the population size on each island change between the first and second census?
Iguana Decline In 1987, Martin Wikelski began a long-term study of marine iguanas in the Galpagos Islands. He marked iguanas on two islandsGenovesa and Santa Feand collected data on how their body size, survival, and reproductive rates varied over time. He found that because iguanas eat algae and have no predators, deaths usually result from food shortages, disease, or old age. In January 2001, an oil tanker ran aground and leaked a small amount of oil into the waters near Santa Fe. FIGURE 44.3 shows the number of marked iguanas that Wikelski and his team counted in their study populations just before the spill and about a year later. FIGURE 44.3 Shifting numbers of marked marine iguanas on two Galpagos islands. An oil spill occurred near Santa Fe just after the January 2001 census (orange bars). A second census was carried out in December 2001 (green bars). Wikelski concluded that changes on Santa Fe were the result of the oil spill, rather than sea temperature or other climate factors common to both islands. How would the census numbers be different from those he observed if an adverse event had affected both islands?
4. Bird guides once listed the myrtle warbler and Audubon’swarbler as distinct species. Recently, these birds have beenclassified as eastern and western forms of a single species,the yellow-rumped warbler. Which of the following piecesof evidence, if true, would be cause for this reclassification?(A) The two forms interbreed often in nature, and theiroffspring survive and reproduce well.(B) The two forms live in similar habitats and have similar foodrequirements.(C) The two forms have many genes in common.(D) The two forms are very similar in appearance.
population of 600 scorpions was split into four populations when irrigation canals were built through their habitat. The four new populations were called the Northern, Southern, Eastern, and Western populations. Each new population consisted of about 150 individuals. The four populations continued to evolve, and no migration occurred among populations. One hundred generations later, each population still has about 150 individuals, and a biologist investigates them. Consider what a biologist expect to see in the four populations after 100 generations if the environment did not change for any of the populations. Would the biologist agree or disagree with the following statements? question 1 agree or disagree Differences among the four populations probably occurred when populations adapted to specific environments, because most evolution results in adaptation. question 2 agree or not Each population would probably have the same number of alleles—that is, versions of genes—than it…
Introduction The Rock Pocket Mouse The rock pocket mouse, Chaetodipus intermedius, is a small, nocturnal animal found in the deserts of thesouthwestern United States. Most rock pocket mice have a sandy, light-colored coat that enables them to blendin with the light color of the desert rocks and sand on which they live. However, populations of primarily dark-colored rock pocket mice have been found living in areas where the ground is covered in a dark rock calledbasalt caused by geologic lava flows thousands of years ago. Scientists have collected data from a population ofprimarily dark-colored mice living in an area of basalt called the Pinacate lava flow in Arizona, as well as from anearby light-colored population. Researchers analyzed the data from these two populations in search of thegenetic mutation responsible for the dark coat color. Their analyses led to the discovery of a mutation in theMc1r gene that is involved in coat-color determination. The MC1R Gene Two pigments…
Among a population of tadpoles, the correlation coefficient for size atmetamorphosis and time required for metamorphosis is −0.74. On thebasis of this correlation, what conclusions can you draw about therelative sizes of tadpoles that metamorphose quickly and those thatmetamorphose more slowly?
The Barton Springs salamander is an endangered species found only inthree adjacent springs in the city of Austin, Texas. There is growingconcern that a chemical spill on a nearby freeway could pollute thespring and wipe out the species. To provide a source of salamanders torepopulate the spring in the event of such a catastrophe, a proposal hasbeen made to establish a captive breeding population of the salamanderin a local zoo. You are asked to provide a plan for the establishment ofthis captive breeding population, with the goal of maintaining as muchof the genetic variation of the species as possible. What factors mightcause loss of genetic variation in the establishment of the captivepopulation? How could loss of such variation be prevented? With theassumption that only a limited number of salamanders can bemaintained in captivity, what procedures should be instituted to ensurethe long-term maintenance of as much variation as possible?