TASK DEFINITION: In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.
PROBLEM: Question: What simple reinforcement programs produce a more stable response pattern ?:
Options: <0> Those of fixed ratio. <1> Those of variable reason. <2> Those of fixed interval. <3> Those of variable interval. <4> All reinforcement programs produce similar response rates.

SOLUTION: psychology

PROBLEM: Question: Indicate which of the following statements is true about bilirubin:
Options: <0> It is a catabolic product of the heme group. <1> It is a product of the urea cycle. <2> It is an intermediary of the Krebs cycle. <3> It is a precursor of hepatic gluconeogenesis. <4> It is a product of cholesterol degradation.

SOLUTION: chemistry

PROBLEM: Question: In animals, where is most of the extracellular material components synthesized ?:
Options: <0> In the smooth endoplasmic reticulum. <1> In the rough endoplasmic reticulum. <2> In the extracellular layer itself. <3> In the plasma membrane. <4> In the cytoplasm of the cell.

SOLUTION:
chemistry