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The freshwater Melanoides tuberculata (Thiarid) has wide distribution and have many variation in color, size, and scluptured of their shells. Comparing with another Thiarid so called Stenomelania punctata, shell of M. tuberculata similar in having turreted shape, blackish color, number of whorls, and size of the shells. This study aim to compare more detailed between M. tuberculata and S. punctata based on their morphology, ontogeny and type of reproduction. Ontogeny studies of these two species show that M. tuberculata produces juveniles in embryonic shell form during their reproduction. This embryonic shell is nourished and developed in the subhaemocoelic brood-pouch organ as evidenced by being found in the size range 0.12–5.95 mm. One individu M. tuberculata can produce 1–66 embryonic shells. Meanwhile, in subhaemocoelic brood-pouch of S. punctata only the unshell embryo was seen and embryonic shell was not found. The difference of reproduction system determines the reproductive strategy in both species. M. tuberculata conduct euviviparity reproduction whereas S. punctata is ovoviviparous that releases juveniles in free-swimming veliger form.

This research is motivated by the lack of vocabulary that is known by students and the lack of media and learning methods so that the learning process becomes boring. The problem in this study is how the results of the application of video animation media with the inquiry method in summarizing the legend story text in class VIII SMP IT Daarut Tahfidz Karangasem, Demak Regency? The purpose of this study is to describe the application of animated video media with the inquiry method in summarizing the legendary text of the class VIII SMP IT Daarut Tahfidz Karangasem in the academic year of 2020. This study used a qualitative descriptive method. The results of the study based on the test scores show different percentages. Of the 28 students there is 1 student or 4% who have not completed and 27 students or 96% have completed. The class average score of the results of the test was 80.65. This value has reached the school's KKM score of 70.Thus, animated video media with the inquiry method in learning summarizes the legendary story text in class VIII SMP IT Daarut Tahfidz Karangasem, Demak Regency, 2020 academic year.

This study aimed to know the culture of students in using pirated books. The location of the study was conducted at State Islamic University of Sultan Syarif Kasim Riau), University of Riau, Universitas Islam Riau, and Lancang Kuning University in Pekanbaru City. Based on the analysis of student economic factors, it shows that the student culture in using pirated books was not because of economic factors. It was evidenced by most of the students with good economic conditions or in the middle to lower class. Based on students' understanding of Copyright, it indicated that students comprehend and understand about copyright. However, respondents considered the copy of the book for the benefit of education does not violate the copyright because to facilitate the science. Actually a photocopy of a book for the benefit of education to facilitate the demand for science is basically an act of copyright infringement because it includes actions to reproduce without permission and disseminate it. Student’s attitudes to regular ordinary photocopies/copies are familiar with copier/pirate books. Based on the habits (culture) of students in buying reference books where the purchase of photocopy reference books/pirates is already a student habit.