The transgene that confers ________ to crops has escaped into the environment, appearing in wild plants and nonengineered crops
a. glyphosate tolerance
b. increased yields
c. the ability to produce the Bt protein
d. drought resistance
a
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Dmitri Ivanovski demonstrated that TMV was not spread via bacteria by
A. transmitting sap of infected plants from generation to generation. B. filtering sap from an infected plant through pores smaller than bacteria, and then applying it to a healthy plant. C. spraying sap from an infected plant onto a healthy plant. D. sterilizing sap from an infected plant and then applying it to a healthy plant. E. treating an infected plant with a broad spectrum of antibiotics before extracting sap.
When does the most rapid growth occur during pregnancy?
a. first trimester b. second trimester c. third trimester d. implantation
The exponential growth rate of a population
under ideal conditions is its
a. carrying capacity. b. logistic growth. c. biotic potential. d. realized niche. e. density dependence
All of the following are problems in the management of antibiotic usage, except
A) The sale of many antibiotics over-the-counter in foreign countries. B) There are no exceptions here. All of these are challenges in the management of antibiotic usage. C) The selection of antibiotics based on results of appropriate antibiotic susceptibility testing. D) Extensive use of broad-spectrum drugs for minor infections. E) The use of antibiotics for upper respiratory viral infections.