Scientists have recommended growers do which of the following to prevent the development of insect resistance to Bt?
a. employ other insecticides with Bt
b. use cultural control methods
c. employ other insecticides with Bt and use cultural control methods
d. neither employ other insecticides with Bt nor use cultural control methods
C
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Why are dynamic compressors more commonly used than positive-displacement compressors?
A) They have a smaller capacity B) They are more readily available C) They require less maintenance D) They are more expensive
The dramatic growth of American cities between 1800 and 1860
A. led to a lower death rate. B. contributed to a decline in the birthrate. C. resulted in unsanitary conditions in many communities. D. forced the federal government to slow immigration. E. sparked federal, state, and local governments to develop urban public transportation networks and an array of social services to manage this growth during this period.
Discuss the process of breeding through hybridization using corn as an example
What will be an ideal response?
The three types of path arrangements for circuits are:
A) Micro-voltage, low-voltage, high-voltage. B) Open, shorted, grounded. C) Conductor, insulator, semiconductor. D) Series, parallel, series-parallel.