An LD-50 Test Measures

question 9

Multiple Choice

An LD-50 test measures:

• A) How many animals feel pain from a drug.
• B) How much of a drug is needed to kill 10 of 100 animals.
• C) How much of a drug is needed to kill 50 of 100 animals.
• D) How much of a drug is necessary to kill animals who have lived 50 days.
• E) How much of a drug is necessary to kill animals who have Long Duration.

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Definitions:

Etiology

Causes or origins, especially of disease.

Multifactorial

Involving or resulting from a combination of multiple genes and environmental factors, as in the etiology of certain diseases.

Reading Disorders

Disorders characterized by difficulties in reading that are not in line with the individual's general intelligence, often referred to as dyslexia.

Phonological Processing

An auditory processing skill that involves detecting and discriminating differences in speech sounds under conditions of little or no distraction or distortion.