What is the role of the respiratory cycle, river shells?
| May 30, 2021 | education
Most river mollusks have a specific respiratory organ – ctenidia (these are gills). With the help of such an organ, the shell not only breathes, but also feeds (it is a filter from which special cilia transport nutrient particles to the digestive system). This means that river shells in the process of breathing purify the water in the reservoir.
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