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This paper compares and analyzes the questions and problems of Genetics raised between 2010 and 2019) in the university entrance exams of four autonomous communities (Andalucia, Castilla-La Mancha, Extremadura and Murcia). After analyzing the 160 tests collected, it is found that there are differences between the communities both in the structure of the tests, the presence or not of certain contents and their evaluations in the correction. In relation to Genetics problems, differences between communities are also appreciated and certain aspects that can be improved from the didactic point of view are maintained. The need to modify the entrance exams is raised according to the desirable equity of the same. [ABSTRACT FROM AUTHOR]

This paper aims to study how the students of Compulsory Secondary Education (ESO) valued the reliability of the information contained in the Internet to carry out a task in a science class. To do this, 156 students from this educational stage, from 3rd and 4th of ESO, from four institutes in the municipality of Murcia took part in the study. We set them a task: they had to answer some questions about "acid rain" and they could use two web pages that the participants could independently select. Once the activity has been carried out, we ask them some questions about the pages used, the credibility of the content found and the reasons or criteria used to grant it such reliability. In addition, we study the dependence of the reliability with some social variables (age, gender, center) and the relationship between the reliability granted and the efficiency in the search for information. e results show contributions to better understand digital competence developed by the particpants. [ABSTRACT FROM AUTHOR]