DDT Was Once Considered a "Silver Bullet" That Would Permanently

question 22

Multiple Choice

DDT was once considered a "silver bullet" that would permanently eradicate insect pests. Today, instead, DDT is largely useless against many insects. Which of these would have been required for this pest eradication effort to be successful in the long run?

• A) Larger doses of DDT should have been applied.
• B) All habitats should have received applications of DDT at about the same time.
• C) The frequency of DDT application should have been higher.
• D) None of the individual insects should have possessed genomes that made them resistant to DDT.
• E) DDT application should have been continual.

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Definitions:

Contractions

In physiology, the process of muscles becoming tightened or shortened, often referring specifically to the rhythmic tightening of uterine muscles during labor that help to facilitate childbirth.

Birth Canal

The passage comprising the cervix, vagina, and vulva through which a fetus passes during childbirth.

Afterbirth

The placenta and other materials expelled from the uterus following the birth of a baby.

Conceive

To become pregnant or to form a new idea or plan in the mind.