Concept explainers
To determine: The town with most of the rats susceptible to warfarin.
Introduction: Rodenticides are the pesticides that have the capability to kill the whole rodent species. Rodents have their own importance in 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 its discovery, warfarin has been widely used, and later, it resulted in the development of warfarin-resistant mice and rats.

Answer to Problem 1DAA
Correct answer: The town with the most rats susceptible to warfarin was Town Lud.
Explanation of Solution
As given in the problem statement, researchers in the year 2000 tested the development of rodenticide resistance in wild rat populations among five towns (Town Olf, Town Sta, Town Dor, Town Lud, and Town Dre) of Germany. They used two rodenticides namely warfarin and recently developed bromadiolone. The obtained data as per the results shown in the Fig 17.6 are as follows:
- In Town Olf, 58% of rat populations were resistant to both warfarin and bromadiolone. 21% of rats were resistant to warfarin alone, and equal percentages (21%) of rats were susceptible to warfarin or bromadiolone.
- In Town Sta, 87% of rat populations were resistant to both warfarin and bromadiolone. 8% of rats were resistant to warfarin alone. Only 5% of the rats were susceptible to warfarin or bromadiolone.
- In Town Dor, 56% of rats among the population were resistant to the rodenticide warfarin, and 44% of them were not susceptible to warfarin or bromadiolone.
- In Town Lud, the whole populations of rat (100%) were susceptible to warfarin or bromadiolone.
- In Town Dre, about 90% of rats were susceptible to warfarin or bromadiolone. Only 5% was resistant to both warfarin and bromadiolone, and 5% was resistant to warfarin alone.
From the given data, it can be concluded that in Town Lud, most of the rat populations were susceptible or not resistant to rodenticide (warfarin or bromadiolone).
Want to see more full solutions like this?
Chapter 17 Solutions
Biology: The Unity and Diversity of Life
- Describe the principle of homeostasis.arrow_forwardExplain how the hormones of the glands listed below travel around the body to target organs and tissues : Pituitary gland Hypothalamus Thyroid Parathyroid Adrenal Pineal Pancreas(islets of langerhans) Gonads (testes and ovaries) Placentaarrow_forwardWhat are the functions of the hormones produced in the glands listed below: Pituitary gland Hypothalamus Thyroid Parathyroid Adrenal Pineal Pancreas(islets of langerhans) Gonads (testes and ovaries) Placentaarrow_forward
- Describe the hormones produced in the glands listed below: Pituitary gland Hypothalamus Thyroid Parathyroid Adrenal Pineal Pancreas(islets of langerhans) Gonads (testes and ovaries) Placentaarrow_forwardPlease help me calculate drug dosage from the following information: Patient weight: 35 pounds, so 15.9 kilograms (got this by dividing 35 pounds by 2.2 kilograms) Drug dose: 0.05mg/kg Drug concentration: 2mg/mLarrow_forwardA 25-year-old woman presents to the emergency department with a 2-day history of fever, chills, severe headache, and confusion. She recently returned from a trip to sub-Saharan Africa, where she did not take malaria prophylaxis. On examination, she is febrile (39.8°C/103.6°F) and hypotensive. Laboratory studies reveal hemoglobin of 8.0 g/dL, platelet count of 50,000/μL, and evidence of hemoglobinuria. A peripheral blood smear shows ring forms and banana-shaped gametocytes. Which of the following Plasmodium species is most likely responsible for her severe symptoms? A. Plasmodium vivax B. Plasmodium ovale C. Plasmodium malariae D. Plasmodium falciparumarrow_forward
- please fill in missing parts , thank youarrow_forwardplease draw in the answers, thank youarrow_forwarda. On this first grid, assume that the DNA and RNA templates are read left to right. DNA DNA mRNA codon tRNA anticodon polypeptide _strand strand C с A T G A U G C A TRP b. Now do this AGAIN assuming that the DNA and RNA templates are read right to left. DNA DNA strand strand C mRNA codon tRNA anticodon polypeptide 0 A T G A U G с A TRParrow_forward
- Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage LearningBiology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
- Case Studies In Health Information ManagementBiologyISBN:9781337676908Author:SCHNERINGPublisher:CengageComprehensive Medical Assisting: Administrative a...NursingISBN:9781305964792Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy CorreaPublisher:Cengage Learning


