Biology, 28.01.2020 18:53 kayla232734
1. psychologists have used four perspectives in their efforts to explain motivation. these include an emphasis on instincts, optimum arousal, a hierarchy of motives, and: a) drive reduction. b) 360-degree feedback. c) refractory periods. d) basal metabolic rate. e) a fixed behavior pattern.
Answers: 2
Biology, 22.06.2019 13:20
Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.
Answers: 1
Biology, 22.06.2019 13:40
As an asteroid comes close to earth, it's name will change to? apex
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Biology, 22.06.2019 14:30
Fill in the blank with the best word to complete the sentence. white blood cells protect against and aid in blood clotting when injuries are sustained.
Answers: 2
Biology, 22.06.2019 15:00
The scales shown in the introduction measure mass, or the amount of matter in a particular object. the scientific law of conservation of mass states that matter cannot be created or destroyed during a chemical reaction, but it can change from one form to another. did the simulation support this scientific law? explain why or why not.
Answers: 1
1. psychologists have used four perspectives in their efforts to explain motivation. these include a...
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