Which of the following about Bt crops is true?
A) They are GM plants that incorporate the gene for producing a potent bacterially produced insecticide.
B) They produce chemicals that interfere with the molting of insect pests.
C) They should always be planted in pure stands to reduce the chance of Bt resistant pests.
D) They produce chemicals that are similar to insect pheromones, interrupting pest mating cycles.
A
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One of the world's largest cities, Mexico City, is located on one of the least favorable places to build a city
Indicate whether the statement is true or false.
A mechanism accounting for differential survival and reproduction among members of a species;
survival of the fittest:a. neptunism d. natural selection b. stratigraphy e. orogeny c. formation
Where did Buddhism originate?
A) India B) Japan C) China D) Vietnam E) Sri Lanka
Which type of mineral resource is associated with layered intrusions?
A. Diamonds B. Petroleum C. Metallic minerals D. Natural gas