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The current study has investigated the morphological identification of some snails ofClass Gastropoda in AL-Diwaniyah City in Iraq. The findings show that there are threefamilies of studied samples, and they are Viviparidae, Thiaridae, and Melanopsidae of thespecies that are Melanoides tuberculata, Bellamya bengalensis and Melanopsis nodosa.More studies should be conducted in this regard, for the fact that normal fauna isimportant in terms of local fauna, and they should be kept under monitoring to avoidspecies extinction.

This research aims to determine students' responses to the biology e-module integrated with IMTAQ values ​​in the Invertebrate material that was developed. This research is R&D research that uses the modified ADDIE (Analyze, Design, Development, Implementation, Evaluation) model. This research is limited to the Development stage. The sample was determined using purposive sampling technique, and the sample size was 65 students from three schools, namely SMAN 1 Pekanbaru, SMAN 5 Pekanbaru and SMAS PGRI Pekanbaru. Data collection uses student response sheets and analysis uses descriptive techniques. The research results obtained an average of 85.87% from the three schools and were included in the "Very Good" category.    

The digestive system is a system that breaks down complex components into simpler ones so that they are easily absorbed by the body's cells. The structure of the digestive organs of each animal varies depending on the level of cell organization and the type of food the animal eats. The aim of this article is to examine the digestive system in invertebrate and vertebrate animals. This article was created using the literature review method. Based on the results of a review of literature on the digestive system of invertebrate animals, at the lowest phylum level, the digestive organs are in the form of gastrovascular cavities formed in protozoa, porifera and coelenterates, at the higher level, namely platyhelminthes, nemathelminthes, annelids, molluscs, arthropods and echinoderms, the digestive organs are recognizable. Vertebrate animals such as fish, amphibians, reptiles, birds and mammals have a more complex digestive system. The vertebrate digestive system consists of the mouth, esophagus, stomach (gestin), small intestine (intestinum tenue), large intestine (intestinum crassum), and anus.