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Multiple choice questions lend themselves to the development of objective assessment items, but without author training, questions can be subjective in nature. Because this style of test does not require a teacher to interpret answers, test-takers are graded purely on their selections, creating a lower likelihood of teacher bias in the results. [8]
The mice were recovered quickly within the lab and no transmission to workers was identified. 2014-03-12 H5N1 influenza virus: United States Accidental shipping of H9N2 vials contaminated with H5N1 from the CDC lab to a USDA lab. [56] 2014-06-05 Anthrax United States Accidental exposure of viable anthrax to 75 personnel at CDC's Roybal Campus.
1 open-ended question [11] Global History and Geography II: 28 multiple-choice questions in chronological order from earliest to latest: 2 sets of constructive-response questions, 3 questions in each set: 1 essay question based on five documents. [b] [12] Living Environment: 30 multiple-choice questions: Mix of 25 multiple-choice and open-ended ...
The exams consist of 35 multiple choice questions of 40 marks for classes I to IV, and 50 multiple choice questions for classes V to XII of 60 marks, to be answered in one hour. Five questions that are part of the 'Achievers' section' carry three marks (and for primary classes excluding 5th, it has only two marks) each whereas the remaining ...
In a protective-suit lab, all work must be done in a class II biosafety cabinet by personnel wearing a positive pressure suit. To exit a BSL-4 lab, personnel must pass through a chemical shower for decontamination, then a room for removing the positive-pressure suit, followed by a personal shower.
Developmental psychobiology posed this question since the lack of knowledge about the precise coordination of all cells, even those not related anatomically, in space and time during the embryonic period does not allow us to understand what forces at the cellular level coordinate four very general classes of tissue deformation, namely: tissue ...
Biological specimens in an elementary school science lab. A biological specimen (also called a biospecimen) is a biological laboratory specimen held by a biorepository for research. Such a specimen would be taken by sampling so as to be representative of any other specimen taken from the source of the specimen. When biological specimens are ...
In molecular biology, a reporter gene (often simply reporter) is a gene that researchers attach to a regulatory sequence of another gene of interest in bacteria, cell culture, animals or plants. Such genes are called reporters because the characteristics they confer on organisms expressing them are easily identified and measured, or because ...