Question

Представители преснаводных ракообразных? ​

Answer 1

Ответ: речной рак, дафнии, циклопы. все они беспозвоночные.

Объяснение:

Answer 2

Representatives of Freshwater Crustaceans

Freshwater crustaceans are a diverse group of organisms that inhabit freshwater environments such as lakes, rivers, and ponds. They play important roles in aquatic ecosystems and can be found in various forms, including crustaceans such as crabs, crayfish, and shrimp. Here are some representatives of freshwater crustaceans:

1. Bythotrephes: Bythotrephes is a genus of freshwater crustaceans belonging to the order Cladocera. They are commonly known as spiny water fleas and are characterized by their long spines. Bythotrephes are filter feeders and play a significant role in the food web of freshwater ecosystems.

2. Astacus astacus: Astacus astacus, also known as the noble crayfish or European crayfish, is a species of freshwater crayfish. They are native to Europe and are known for their large size and distinctive appearance. Noble crayfish are important in freshwater ecosystems as they contribute to nutrient cycling and serve as a food source for other organisms.

3. Daphnia: Daphnia is a genus of small freshwater crustaceans belonging to the order Cladocera. They are commonly known as water fleas and are an important part of the zooplankton community in freshwater ecosystems. Daphnia are filter feeders and play a crucial role in controlling algal blooms and maintaining water quality.

4. Gammarus: Gammarus is a genus of freshwater crustaceans belonging to the order Amphipoda. They are commonly known as freshwater shrimp or scuds and are found in various freshwater habitats worldwide. Gammarus are detritivores and play a role in the decomposition of organic matter in freshwater ecosystems.

5. Cyclops: Cyclops is a genus of small freshwater crustaceans belonging to the order Cyclopoida. They are commonly known as copepods and are an important part of the zooplankton community in freshwater ecosystems. Cyclops are filter feeders and serve as a food source for many aquatic organisms.

These are just a few examples of the representatives of freshwater crustaceans. There are many more species and genera that contribute to the biodiversity and ecological functioning of freshwater ecosystems.

I hope this information helps! Let me know if you have any more questions.