Biology: The Unity and Diversity of Life
15th Edition
ISBN: 9780357093795
Author: STARR
Publisher: CENGAGE LEARNING (CUSTOM)
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Chapter 45, Problem 14SQ
Summary Introduction
Introduction: The interactions among the members of the different species are called interspecific interactions. It can affect the reproduction and survival of the species that engage in them. Biological control agents are used for controlling the pests like weeds, insects, mites, nematodes, and so on in order to generate pest-free yields.
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Chapter 45 Solutions
Biology: The Unity and Diversity of Life
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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- Some invasive species carry pathogens or parasites with them. Scientists think this might be one reason why some introduced species become invasive. Carrying pathogens or parasites might make an invading species more successful if the invading pathogen or parasite ___________ a. Selectively infects and kills native competitors b. Dies out shortly after entering the new environment c. Loses its ability to infect all species in the new environment d. Selectively infects and kills the invasive speciesarrow_forwardIt has been found that many insect pest populations have become more resistant to pesticides over time. How might this have occurred? arrow_forwardLizards that eat flies they catch on the ground and birds that catch and eat flies in the air are engaged in ______ competition. a. exploitative b. interference c. intraspecific d. interspecific e. both a and d f. both b and carrow_forward
- 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). 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_forwardDecomposers a. break down dead organic matter in the environment by secreting digestive enzymes. b. break down living organic matter by secreting digestive enzymes. c. destroy living cells and then break them down with digestive enzymes. d. live in close association with another species.arrow_forward
- Energy from the sun is directly harnessed by _________ A.) producers B.)all organisms C.)consumers which can be _______ by other organisms. A.)consumed B.)decomposed C.)inheritedarrow_forwardA relationship between two species where one species benefits and the other is neither hurt nor helped is known asa. parasitism.b. commensalism.c. mutualism.d. competition.arrow_forwardBased on the text on mosquitoes eating: 1. Identify the niche of the pest: carnivore; herbivore; omnivore; or parasite! Use DIRECT EVIDENCE FROM THE TEXT to support your claim. USE REASONING to support your claim. USE THIS SENTENCE STARTER:The niche of the pest is (carnivore; herbivore; omnivore; parasite) because in the text it states__. This means _. USE THIS TEXT ONLYarrow_forward
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