EP CAMPBELL BIO.IN FOCUS AP-MOD.MASTER.
3rd Edition
ISBN: 9780137453092
Author: Urry
Publisher: SAVVAS L
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 19, Problem 6TYU
SCIENTIFIC INQUIRY
DRAW IT Mosquitoes resistant to the pesticide DDT first appeared in India in 1959, but now are found throughout the world. (a) Graph the data in the table below. (b) Examining the graph, hypothesize why the percentage of mosquitoes resistant to DDT rose rapidly. (c) Suggest an explanation for the global spread of DDT resistance
| Month | 0 | 8 | 12 |
| Mosquitoes Resistant* to DDT | 4% | 45% | 77% |
Data From C. F. Curtis et al., Selection for and against insecticide resistance and possible methods of inhibiting the evolution of resistance in mosquitoes, Ecological Entomology 3:273–287 (1978).
*Mosquitoes were considered resistant if they were not killed within 1 hour of receiving a dose of 4% DDT.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Chosen species is the animal aye aye
THINK IT THROUGH A federal agency has put you in charge of devising responses to the invasions of zebra mussels and quagga mussels. Based on what you know from this chapter, how would you seek to control the spread of these species and reduce their impacts? What strategies would you consider pursuing immediately? For which strategies would you commission further scientific research? For each of your ideas, name one benefit or advantage, and identify one obstacle it might face in being implemented.
In a community in which R elderly people and people with comorbidities are susceptible to a particular SARS virus, the rate of growth of the spread of the virus was jointly proportional to the number of people who had caught the virus and the number of susceptible people who had not caught it. If 10 percent of those susceptible had the virus initially and 25 percent had been infected after 3 weeks, what percent of those susceptible had been infected
after 6 weeks?
Chapter 19 Solutions
EP CAMPBELL BIO.IN FOCUS AP-MOD.MASTER.
Ch. 19.1 - How did Huttons and Lyells ideas influence Darwins...Ch. 19.1 - MAKE CONNECTIONS Scientific hypotheses must be...Ch. 19.2 - How does the concept of descent with modification...Ch. 19.2 - Prob. 2CCCh. 19.2 - MAKE CONNECTIONS Review the relationship between...Ch. 19.3 - Explain how the following statement is inaccurate:...Ch. 19.3 - How does evolution account for (a) the similar...Ch. 19.3 - WHAT IF? Fossils show that dinosaurs originated...Ch. 19 - Which of the following is not an observation or...Ch. 19 - Which of the following observations helped Darwin...
Ch. 19 - Prob. 3TYUCh. 19 - The upper forelimbs of humans and bats have fairly...Ch. 19 - DNA sequences In many human genes are very similar...Ch. 19 - SCIENTIFIC INQUIRY DRAW IT Mosquitoes resistant to...Ch. 19 - FOCUS ON EVOLUTION Explain why anatomical and...Ch. 19 - FOCUS ON INTERACTIONS Write a short essay (about...Ch. 19 - SYNTHESIZE YOUR KNOWLEDGE This honeypot ant (genus...
Additional Science Textbook Solutions
Find more solutions based on key concepts
11. In the early 1800s, French naturalist Jean Baptiste Lamarck suggested that the best explanation for the rel...
Campbell Biology: Concepts & Connections (8th Edition)
What are the cervical and lumbar enlargements?
Principles of Anatomy and Physiology
To test your knowledge, discuss the following topics with a study partner or in writing ideally from memory. Th...
Human Anatomy
A student moving out of a dormitory crouches in correct fashion to lift a heavy box of books. What prime movers...
HUMAN ANATOMY
Why are mutants used as test organisms in the Ames test?
Laboratory Experiments in Microbiology (11th Edition)
Some people compare DNA to a blueprint stored in the office of a construction company. Explain how this analogy...
Biology: Concepts and Investigations
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
- Match the terms with the most suitable description. ____ data a. ifthen statement ____ probability b. unique type of organism ____ species c. experimental results ____ hypothesis d. testable explanation ____ prediction e. measure of chance ____ producer f. makes its own foodarrow_forwardTesting Biological Control Biological control agents are used to battle red imported fire ants. Researchers have enlisted the help of Thelohania solenopsae, a natural enemy of the ants. This microsporidian (Section 23.4) is a parasite that infects ants and shrinks the ovaries of the colony's egg-producing female (the queen). As a result, a colony dwindles in numbers. Are these biological controls useful against imported fire ants? To find out, USDA scientists treated infested areas with either traditional pesticides or pesticides plus biological controls (both flies and the parasite). The scientists left some plots untreated as controls. FIGURE 45.16 shows the results. FIGURE 45.16 A comparison of two methods of controlling red imported fire ants. The graph shows the numbers of red imported fire ants over a 28-month period. Orange triangles represent untreated control plots. Green circles are plots treated with pesticides alone. Black squares are plots treated with pesticide and biological control agents (parasitoid flies and a microsporidian parasite). How did population size in the two types of treated plots change during this same interval?arrow_forwardTesting Biological Control Biological control agents are used to battle red imported fire ants. Researchers have enlisted the help of Thelohania solenopsae, a natural enemy of the ants. This microsporidian (Section 23.4) is a parasite that infects ants and shrinks the ovaries of the colony's egg-producing female (the queen). As a result, a colony dwindles in numbers. Are these biological controls useful against imported fire ants? To find out, USDA scientists treated infested areas with either traditional pesticides or pesticides plus biological controls (both flies and the parasite). The scientists left some plots untreated as controls. FIGURE 45.16 shows the results. FIGURE 45.16 A comparison of two methods of controlling red imported fire ants. The graph shows the numbers of red imported fire ants over a 28-month period. Orange triangles represent untreated control plots. Green circles are plots treated with pesticides alone. Black squares are plots treated with pesticide and biological control agents (parasitoid flies and a microsporidian parasite). If this study had ended after the first year, would you conclude that biological controls had a major effect?arrow_forward
- Match the terms with the most suitable description. _____life a. if-then statement _____probability b. unique type of organism _____species c. emerges with cells _____hypothesis d. testable explanation _____prediction e measure of chance _____producer f. makes its own foodarrow_forwardBased on this text : 1. Identify the biological process by which the malaria carrying mosquitoes (Anopheles coluzzi or Anopheles Gambian) developed insecticide resistance. USE THIS SENTENCE STARTER: The mosquitoes developed insecticide resistance by..arrow_forwardQuestion about Biology, thankss!arrow_forward
- Using evidence from the text, what factors influenced the survival of humans during the bubonic plague? PLEASE DONT COPY FROM GOOGLE USE THE TEXT!!!!!arrow_forwardNow, let's investigate growth in another population: bedbugs! Let's say a college in Kentucky experienced a bedbug infestation, and biology students were asked to help study the problem. Bedbugs are insects that live inside of mattresses (and other similarly warm places) and feed on the blood of sleeping humans. The origin of the bedbug infestation was traced to a student who accidentally brought a few bedbugs in his luggage, after spending a long weekend in New York City. Bedbugs reproduce sexually. In an infested room with a 4 m2 dorm bed, biology students find a population of 1200 bed bugs. In one month, they find that 240 bedbugs die, and 600 new bedbugs hatch. The maximum number of bedbugs is limited by the size of the bed that they live in. What is the density of bedbugs in the dorm bed studied by the biology students? (Explain)arrow_forwardPhylogenetic hypothesis 1 requires __ changes, whereas hypothesis 2 requires Hypothesis I 4 Hypothesis II 1 2 3 1 2 3 4 1 2 3 4 Dark Dark Light Light coat coat coat coat 반부문 Dark coat OR ○ 1, 2 ○ 2, 1 0 1, 1 2,2 TIME Tin Atte 5 Secarrow_forward
- Sustainable Use of Horseshoe Crabs Horseshoe crab blood clots immediately upon exposure to bacterial toxins, so it can be used to test injectable drugs for the presence of dangerous bacteria. To keep horseshoe crab populations stable, blood is extracted from captured animals, which are then returned to the wild. Concerns about the survival of animals after bleeding led researchers to do an experiment. They compared survival of animals captured and maintained in a tank with that of animals captured, bled, and kept in a similar tank. FIGURE 24.28 shows the results. FIGURE 24.28 Mortality of young male horseshoe crabs kept in tanks during the 2 weeks after their capture. Half the animals were bled on the day of their capture. Control animals were handled, but not bled. This procedure was repeated 8 times with different sets of horseshoe crabs. Looking at the overall results, how did the mortality of the two groups differ?arrow_forwardSustainable Use of Horseshoe Crabs Horseshoe crab blood clots immediately upon exposure to bacterial toxins, so it can be used to test injectable drugs for the presence of dangerous bacteria. To keep horseshoe crab populations stable, blood is extracted from captured animals, which are then returned to the wild. Concerns about the survival of animals after bleeding led researchers to do an experiment. They compared survival of animals captured and maintained in a tank with that of animals captured, bled, and kept in a similar tank. FIGURE 24.28 shows the results. FIGURE 24.28 Mortality of young male horseshoe crabs kept in tanks during the 2 weeks after their capture. Half the animals were bled on the day of their capture. Control animals were handled, but not bled. This procedure was repeated 8 times with different sets of horseshoe crabs. Based on these results, would you conclude that bleeding harms horseshoe crabs more than capture alone does?arrow_forwardDiscussion Thread : Ever wondered why mosquitoes exist? Everyone knows they serve as vectors for many illnesses (malaria, yellow fever and dengue fever to name a few)....but do they serve any "useful" purpose? Yes, they do! "The bizarre and Ecologically Important Hidden Lives of Mosquitoes" (https://theconversation.com/the-bizarre-and-ecologically-important-hidden-lives-of-mosquitoes-127599) Please comment on one surprising fact you learned from this article and explain in a few sentences.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781305073951Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage Learning
Biology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781337408332Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology: The Unity and Diversity of Life (MindTap...
Biology
ISBN:9781305073951
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Biology: The Unity and Diversity of Life (MindTap...
Biology
ISBN:9781337408332
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Infectious Diseases - How do we control them?; Author: Let's Learn Public Health;https://www.youtube.com/watch?v=2JWku3Kjpq0;License: Standard Youtube License