A Group Is Experimenting with Selection in an Insect Species

question 47

Multiple Choice

A group is experimenting with selection in an insect species due to exposure to a newly developed insecticide, cpd AW143. The group has found that after 10 generations of exposure, the population is now bimodal in its response to the drug. Close to 30% of the population are completely normal while 70% live only about 1/6 of the normal lifetime. This is an example of ______.

• A) threshold effect
• B) stabilizing selection
• C) disruptive selection
• D) directional selection
• E) additive genes

Identify effective treatment approaches for panic disorder.

Recognize the efficacy of problem-solving therapy in reducing mental and physical health problems.

Understand the treatment outcomes of problem behavior in individuals with mental retardation.

Evaluate the efficacy of biofeedback for migraines and tension headaches.

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Definitions:

Gases Exchange

The process of oxygen and carbon dioxide moving between the bloodstream and the lungs in animals, and the atmosphere and cells in plants.

Diffusion

The process by which molecules spread from areas of high concentration to areas of low concentration, often leading to equilibrium.

Osmosis

The process by which molecules of a solvent pass through a semipermeable membrane from a less concentrated solution into a more concentrated one.

Filtration

The process of separating solids from liquids or gases using a filter medium that allows only the fluid to pass through.