Testing 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
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
Want to see the full answer?
Check out a sample textbook solutionChapter 45 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
- Imagine a sealed terrarium containing a plant and a beetle. How does each organism provide resources for the other? Could each organism survive if it was, the only living thing in the terrarium? Why or why not?arrow_forwardAt a neighboring lab bench, students find that there are a few whitecolonies scattered among a few hundred blue colonies on theirLB/Amp/X-Gal+ plates.a. How would you explain this result?b. To confirm your hypothesis, you ask to see their LB/Amp/X-Gal- plate.What do you see that supports your hypothesis?arrow_forwardThe Discovery of cdc2 as the key regulator of the cell cycle by Paul Nurse 3. When Paul Nurse did his own cdc screen in fission yeast, why was he more attracted to the wee mutants than to any of the other mutants? Why were smaller cells more interesting to him than arrested, or bigger celled mutants? 4. How did the Nurse lab people show that humans had a cdc homologue?arrow_forward
- Hello, I need help to draw mitosis cell for this type of plant, called Chrysopogon aciculatus which I believe reproduces through seeds. Attached is a picture of said plant under the microscope. However, I have trouble drawing its cell under mitosis(?). It is similar to onion root tip mitosis cells, but instwad of onion, it's this plant.arrow_forwardProbability in biology; please help me answer part D.arrow_forwardMatch the model organism with the generation time 3 day generation time at room temperature v Choose... Mus musculus 8 week generation time Caenorhabditis elegans 10 day generation time at room temperature Escherichia coli Drosophila melanogaster Arabidopsis thaliana Saccharomyces cerivisiae divides in 90 minutes under optimal conditions divides in 20 minutes under optimal conditions Choose... 6 week generation time Choose...arrow_forward
- Hi can someone help me with this question please?arrow_forwardPLEASE DO NOT PLAGERIZE FROM THE TEO QUESTION. WRITE IT IN YOUR OWN WORDS. OTHERWISE I WILL GET INTO TROUBLE. Again write it in tour own words please. My teacher wants me to write this in own words so I have to do that. WRITE IT IN A simple way as possible.arrow_forwardMake a concept map of this.arrow_forward
- 50 μm 10 μ A major difference between the process Image 1 could be of (a) dividing shown in the images is that and image 2 could be of (a) sea urchin egg; dividing cells in the root tip of a plant; the animal cell is forming a cell wall between the two daughter cells cells in a lily plant; dividing sea urchin egg; the plant cell has a row of fusing Golgi vesicles that will separate the two cells cells in a lily plant; dividing sea urchin egg; the animal cell has a contractile ring of actin and myosin separating the cells sand dollar egg; dividing cells in a lily plant; the plant cell does not have a ring of actin and myosin pinching the cell inward sand dollar egg; dividing cells in a lily plant; the animal cell has a row of fusing Golgi vesicles that will separate the two cells © Dr. David Phillips/Visuals Unlimited, Inc. © B. A. Palevitz, E. H. Newcomb/ Biological Photo Servicearrow_forwardVISUALIZE Label the following diagram and explain what this diagram illustrates.arrow_forwardFluorescence Mapping of Blastomere in Sea Urchins Fate mapping is a technique that allows determination of the fate of cells from the three germ layers. In worms, the endoderm gives rise to the cells that line the intestines. The ectoderm gives rise to cells of the nervous system and body covering. The mesoderm gives rise to the muscles and other organs between the ectoderm and mesoderm. A researcher is tracing the fate of a particular cell (blastomere) from its position in one of the three germ layers of sea urchin blastulae by injecting a fluorescent tag in cells of the ectoderm, mesoderm, and endoderm. Several weeks later, the sea urchin embryos were analyzed for the presence of fluorescence in specific tissues. The following results were obtained. Tissue Percent increase fluorescence over background when dye is injected in the ectoderm Percent increase fluorescence over background when dye is injected in the mesoderm Percent increase fluorescence over background when dye is…arrow_forward
- Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage LearningBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxHuman Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
- Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage LearningBiology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning