Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 17, Problem 3DAA
Summary Introduction
To determine: The percentage of warfarin-resistant rats in town Olf.
Introduction: Rodenticides are the pesticides that have a capability to kill the whole rodent species. Rodents have their own importance in the nature but sometimes require some control over their population, as they could transmit disease, destroy crops, and may cause ecological damage. Warfarin is a common anticoagulant that could be used as a rodenticide to kill mice and rats.
After the discovery, warfarin has been widely used and later it resulted in development of species of warfarin-resistant mice and rats. Another recently developed bromadiolone called as super-warfarin (second-generation warfarin) has a greater ability to accumulate in the liver and kill the organism.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
The pesticide DDT was widely used in the 1940s as a method of insect control. In the late 1950s the first DDT-resistant mosquitoes were discovered, and eventually DDT-resistant mosquitoes were found globally. When DDT is used now, the development of DDT resistance in mosquito populations occurs in months rather than years.Which of the following best explains the observations concerning DDT resistance in mosquitoes?
a) The proportion of DDT-resistant mosquitoes in a population remains constant due to the metabolic costs of DDT utilization
b) Natural selection favors DDT-resistant mosquitoes that are already present in a population when DDT exposure occurs.
c) DDT is a chemical signal that delays normal reproductive cycles in many mosquito populations.
d) Competition for limited resources causes mosquitoes to migrate to geographical areas that have richer supplies of DDT.
Recall our discussions about the assumed relationships between oxpecker birds and cattle. Initial historical observations described them as mutualists. Based on the
exclusion experiments by Weeks et al. (2000), which of the following is the best explanation for the association between oxpeckers and their cow friends?
10-
E -5-
1st treatment
p 0.6
2nd treatment
p> 0.08
3rd treatment
p>0.07
O a. They are true mutualists because the presence of the birds is associated with increased wound size and there is no significant decline in tick infestations.
O b. They are true mutualists because the birds get the majority of their food in the form of eating the ectoparasites, like ticks, off the cattle and the cattle get the
benefit of a reduced parasite burden.
O c. They are not true mutualists because the oxpecker birds only cause harm to the cattle and no benefit.
O d. They are not true mutualists because although the birds do decrease the amount of ear wax build up which could enable better…
The pesticide DDT was widely used in the 1940s as a method of insect control. In
the late 1950s the first DDT-resistant mosquitoes were discovered, and
eventually DDT-resistant mosquitoes were found globally. When DDT is used
now, the development of DDT resistance in mosquito populations occurs in
months rather than years.Which of the following best explains the observations
concerning DDT resistance in mosquitoes? *
nd 2
school
The proportion of DDT-resistant mosquitoes in a population remains constant due to
the metabolic costs of DDT utilization
DDT is a chemical signal that delays normal reproductive cycles in many mosquito
populations.
Natural selection favors DDT-resistant mosquitoes that are already present in a
population when DDT exposure occurs.
Competition for limited resources causes mosquitoes to migrate to geographical
areas that have richer supplies of DDT.
A population of 1.492 finches is introduced to a rainforest. Over the next year, the
finches showa death rate of…
Chapter 17 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 17 - Prob. 1DAACh. 17 - Prob. 2DAACh. 17 - Prob. 3DAACh. 17 - Prob. 4DAACh. 17 - Prob. 1SQCh. 17 - A neutral mutation _______ . a. has a pH of 7.0 b....Ch. 17 - Change in allele frequency of a population is...Ch. 17 - A wild population of pea plants has two alleles...Ch. 17 - Which of the following is not part of how we...Ch. 17 - Prob. 6SQ
Ch. 17 - The persistence of sickle-cell anemia in a...Ch. 17 - ___ tends to keep populations of a species similar...Ch. 17 - Which is required for a population to evolve? a....Ch. 17 - Prob. 10SQCh. 17 - After fire devastates all of the trees in a wide...Ch. 17 - True or false? Inbreeding can increase the...Ch. 17 - The difference between sympatric and parapatric...Ch. 17 - Prob. 14SQCh. 17 - Match the evolution concepts. ____ gene flow a....Ch. 17 - Species have traditionally been characterized as...Ch. 17 - Rama the cama, a llama-camel hybrid, was born in...Ch. 17 - Two species or antelope, one from Africa, the...Ch. 17 - Prob. 4CTCh. 17 - About 70 percent of flowering plants are...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- A population of rodents establishes itself in a habitat that has previously been colonized by its same species. Soon after, the construction of an engineering work causes habitat degradation, which causes the total population to slow down. As time passes, the degradation is greater.a) Formulate mathematically the variation of the population size N of the rodent population at time t, first for the situation described without engineering work and then for the scenario with engineering work. Define the necessary parameters for your model. b) Indicate the equilibrium values of the population N.c) By what time should the population be extinct?arrow_forwardIn the Introduction, the authors set the stage for their experiment. What ecological issues were facing Yellowstone National Park when wolves were no longer there, and how were the researchers going to test the questions they wanted to ask? In 4 – 6 sentences, summarize the Methods section of this paper. One of the questions the researchers asked when they began their experiment was “With wolves now back on the Yellowstone landscape for 15 years, how has the reintroduction of wolves affected the recruitment of the woody browse species?” Use data from the Ripple and Beschta paper to support your answer. In any scientific paper, the Discussion is often the most hard-hitting, and where researchers elaborate and explain their results in the context of their experiment and the real world. Explain why when researchers tried culling some of the elk herd it did not have trophic effects, while reintroducing wolves did have trophic effects. Describe the multiple impacts of wolf…arrow_forwardRefer to figure 56.22. Are there alternative hypotheses that might explain the increase followed by the decrease in ant colony numbers subsequent to rodent removal in the experiment described in figure 56.22? If so, how would you test the mechanism hypothesized in the figure?arrow_forward
- When wolves were returned to Yellowstone National Park in 1995, some of the effects noted were increasing levels of berries available to black bears, stabilization of stream banks, increased nesting habitat for birds, and increasing beaver numbers as a result of rejuvenating aspen trees. These were later determined to be the results of reduced numbers and altered feeding behavior of elk as they were preyed upon by the wolves. Given this information, which of the following best describes wolves in Yellowstone National Park? A. They are a primary consumer B. They are an ecosystem engineer C. They are a foundation species D. They are a keystone species E. They are a flagship speciesarrow_forwardThe Colorado potato beetle has a history of pesticide resistance. The graph shows the number of chemical insecticides used in agriculture that the Colorado beetle population has become resistant to from 1950 to 2010. It took longer for the population of potato beetle to develop a resistance to some insecticides. However, by 1990, the Colorado potato beetle population had developed a resistance to 35 different kinds of insecticides, and farmers ran out of insecticides they could use to control the beetle population. A new type of insecticide was introduced in 1995. 60 40 30 20 10 1960 1970 1980 1990 2000 Year of Report Which of the following best describes what happened from 1965 to 1975 and again from 1995 to 2000 to the insecticide resistance of the beetle population? The Colorado beetle gene pool for insecticide resistance was identical and the insecticide had no effect on the beetle population, which is why it continued to increase. The introduced insecticides were effective for a…arrow_forwardO Bronny Before Going Against L x + Close A Did you finish your interim? if a Edcite Q 12 | 2021 SCLG8 2 x xO Classkick C Clever Portal edcite.com/apps/MOElemViewer?assignid nhaadmin_1611780315611&exid=nhaassessments 15711556315558acode C6G7L7 The data table below includes the estimated populations of woolly monkeys and long-horned grasshoppers in a small area of the Amazon. The data includes numbers from both before and after a fungus harmed the health of the long- horned grasshoppers. Use the information below to answer the question. Organisms such as dead-leaf moths and peacock katydids depend on dead leaves on the ground floor of the Amazon for camouflage. Before Fungus After Fungus Number of Woolly Monkeys Number of Long-Horned Grasshoppers Number of Woolly Monkeys Number of Long-Horned Grasshoppers 4395 35 2377 25 Analyze and interpret the data to draw a conclusion about the relationship Dead-leaf moth (left) and peacock katydid (right). between woolly monkeys and long-horned…arrow_forward
- You want to distinguish between two hypotheses to explain the patterns you see: 1) Males not feeding the young is an adaptation to dimorphism 2) If males don't feed the young in a species, it will allow them to become brightly colored To begin to address this question, map the characters changes in dimorphism and males feeding the young onto each of the trees on the previous page. CHARACTER SEXUAL DIMORPHISM MALES FEED YOUNG Cassin's Vireo No No Red Fox Sparrow Cape May Warbler Cedar Waxwing Golden-Crowned Kinglet Pyrrhuloxia Yes No No No No Yes No Yes Yes No California Gull No Yes Note: This data is fictional 5) Which of the hypotheses in part 4 is consistent with your analysis? Explain why in a brief paragraph.arrow_forwardIt was later discovered in Cliff Tabin’s lab that a gene called Bmp4 involved in cell-cell signaling during beak development is partly responsible for beak depth in ground finches (Abzhanov et al., 2004). Alleles that increase Bmp4 expression increase the depth of the beaks, and were most likely selected for during the drought in 1977 (Abzhanov et al., 2004). In 2001, ground finches were collected from Daphne major and genotypes were analyzed at this particular locus. Phenotype Genotype Number of Individuals Observed Genotype Frequency Low Bmp4 expression AA 491 ? Low Bmp4 expression Aa 336 ? High Bmp4 expression aa 552 ? In 2009, allele frequencies were measured again on Daphne major for this particular gene. Phenotype Genotype Number of Individuals Observed Genotype Frequency Low Bmp4 expression AA 706 ? Low Bmp4 expression Aa 493 ? High Bmp4 expression…arrow_forwardA population of lizards in Northern California is brown and is not poisonous to birds. A population of lizards in Southern California is orange and is poisonous to birds. In central California, where the two species overlap, a new species of non-poisonous, orange lizards arose. Which of the following statements best explains the existence of non-poisonous orange lizards? A) Non-poisonous brown lizards changed color once they noticed birds did not eat orange lizards. B) Non-poisonous orange lizards have a selective advantage since birds avoid orange lizards. C) Non-poisonous lizards turn orange by eating orange flowers and then pass the trait on D) Non-poisonous orange lizards have a selective disadvantage since they cannot blend in. E) Non-poisonous brown lizards are more attractive to mates.arrow_forward
- DOTa species The pesticide DDT was widely used in the 1940s as a method of insect control. In the late 1950s the first DDT-resistant mosquitoes were discovered, and eventually DDT-resistant mosquitoes were found globally. When DDT is used now, the development of DDT resistance in mosquito populations occurs in months rather than years.Which of the following best explains the observations concerning DDT resistance in mosquitoes? * The proportion of DDT-resistant mosquitoes in a population remains constant due to the metabolic costs of DDT utilization DDT is a chemical signal that delays normal reproductive cycles in many mosquito populations. Natural selection favors DDT-resistant mosquitoes that are already present in a population when DDT exposure occurs. Competition for limited resources causes mosquitoes to migrate to geographical areas that have richer supplies of DDT. A population of 1,492 finches is introduced to a rainforest. Over the next year, the finches showa death rate of…arrow_forwardSquirrels can be pests at bird feeders, stealing seeds away from the intended guests. The graph below shows the results of an experiment testing a new product "Squirrel Away." On Day 1, "Squirrel-Away" was sprayed near one bird feeder. An area around a second bird feeder in a different area was NOT sprayed with "Squirrel Away." Both bird feeders contained the same seeds. The Effect of "Squirrel Away" on the Number of Squirrles at Two Bird Feeders 10 Without Squirrel Away WITH Squirrel-Away What was the independent variable in the experiment above? Average number of squirrels at the bird feeder per day Average number of birds at the bird feeder per day O Presence or absence of Squirrel Away Distance from the bird feeder that Squirrel Away was sprayed The type of seeds added to the bird feeder 9, 4. 2. at the Bird Feeder Per Day Average Number of Squirrelsarrow_forwardThe red wolf (Canis rufus) was once widespread in the southeastern United States but was declared to be extinct in the wild. Biologists bred captive red wolf individuals and reintroduced them into areas of eastern North Carolina, where they are federally protected as endangered species. The current wild population is estimated to be about 100 individuals. However, a new threat to red wolves has arisen: hybridization with coyotes (Canis latrans), which have become more numerous in the areas inhabited by red wolves. Although red wolves and coyotes differ in morphology and DNA, they are capable of interbreeding and producing fertile offspring. Social behavior is the main reproductive barrier between the species and is more easily overcome when same-species mates are rare. For this reason, some people think that the endangered status of the red wolf should be withdrawn and resources should not be spent to protect what is not a “pure” species. Do you agree? Why or why not?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSON
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Anatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education