A farmer is tired of watching crops die in the field from several pest species. She decides that next year she is going to use every type of ecological pest control she can find to address the problem
Over the winter she gets ready, ordering pheromones that interfere with the reproduction of the pests, sterile male flies that will try to reproduce with some of the pest flies, and wasps that lay their eggs in the larvae of another pest. It is expensive, but she thinks this should work well. Which of the following forms of control is she not using? A) Natural enemies control
B) Cultural control
C) Genetic control
D) Natural chemical control
B
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Central place theory explains the distribution of services and why a regular pattern of settlements exist, at least in developed countries such as the United States
Indicate whether the statement is true or false.
In comparison to liquid water, the density of the ice in hail is:
A) 50% of water. B) 70% of water. C) 90% of water. D) no difference
How has fossil diversity changed over time? Why do diversity trends differ among taxonomic levels?
What will be an ideal response?
Air mass source regions tend to be dominated by:
A) cyclones. B) converging winds. C) dry air. D) slow moving anticyclones. E) fast wind speeds.