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
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Chapter 45, Problem 2DAA
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
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Chapter 45 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 45 - Testing Biological Control Biological control...Ch. 45 - Testing Biological Control Biological control...Ch. 45 - Testing Biological Control Biological control...Ch. 45 - Prob. 4DAACh. 45 - The type of physical environment in which a...Ch. 45 - Which cannot be a symbiosis? a. mutualism b....Ch. 45 - Prob. 3SQCh. 45 - ______ can lead to resource partitioning. a....Ch. 45 - Prob. 5SQCh. 45 - Lizards that eat flies they catch on the ground...
Ch. 45 - By a currently favoured hypothesis, species...Ch. 45 - With ______, one species evolves to look like...Ch. 45 - Growth of a forest in an abandoned corn field is...Ch. 45 - Prob. 10SQCh. 45 - If you remove a species from a community, the...Ch. 45 - Prob. 12SQCh. 45 - Prob. 13SQCh. 45 - Prob. 14SQCh. 45 - Prob. 15SQCh. 45 - With antibiotic resistance rising, researchers are...Ch. 45 - Flightless birds on islands often have relatives...Ch. 45 - Some attempts to use biological controls prove...
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- 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 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_forwardEXPERIMENT: CRYOPRESERVATION OF CULTURED CELL LINES Table 1: The initial cell counting before cryopreservation Quadrant Death cell Live cell 1 15 0 3 7 1 5 15 0 7 15 0 9 14 0 Total 66 1 67 Table 2 : Total cells concentration before cryopreservation Total cells 67 Total viable cells 66 Percentage of viable cells (%) 98.51 Average of viable cells 13.2 Cell concentration (cells/ml) 264000 Table 3: Total cells concentration after cryopreservation Total cells 46 Total viable cells 28 Percentage of viable cells (%) 60.87 Average of viable cells 5.6 Cell concentration (cells/ml) 112000 QUESTION: Please make a conclusion in one paragraph based on the tables above.arrow_forwardEXPERIMENT: CRYOPRESERVATION OF CULTURED CELL LINES Table 1: The initial cell counting before cryopreservation Quadrant Death cell Live cell 1 15 0 3 7 1 5 15 0 7 15 0 9 14 0 Total 66 1 67 Table 2 : Total cells concentration before cryopreservation Total cells 67 Total viable cells 66 Percentage of viable cells (%) 98.51 Average of viable cells 13.2 Cell concentration (cells/ml) 264000 Table 3: Total cells concentration after cryopreservation Total cells 46 Total viable cells 28 Percentage of viable cells (%) 60.87 Average of viable cells 5.6 Cell concentration (cells/ml) 112000 Question: From the table(result) given, please make a discussion The discussion should discuss what is cryopreservation (1), how cryopreservation is useful to make this experiment successful (2), what can be observed from total cells concentration before and after…arrow_forward
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