Question

Какая роль кишечнополостных в природе​

Answer 1

Ответ:

Кишечнополостные: формируют биоценозы морей; ... питаются взвешенной органикой и тем самым способствуют очищению вод морей (гидры, обитающие в пресных водоёмах, очищают воду от органики; коралловые полипы актиния, питаясь водными микроорганизмами, флорой и фауной, выполняют роль природного фильтра).

Answer 2

Ответ:

В природе кишечнополостные конечно же прежде всего выступают в роли участников пищевых цепей,способны к очищению воды,созданию естественных преград -- коралловых рифов (коралловые полипы),многие представители могут быть ядовиты.

Для человека значение кишечнополостных тоже немаловажно: из тех же коралловых полипов изготавливают известняк,некоторых представителей задействуют в качестве украшений,пищи,иногда лекарств;некоторые могут быть яДОВИТЫ,ВПЛОть до смертельного исхода.

Answer 3

The Role of Cnidarians in Nature

Cnidarians, which include jellyfish, corals, and sea anemones, play important roles in the natural world. These organisms have unique characteristics and contribute to various ecological processes. Here are some key points about the role of cnidarians in nature:

1. Biodiversity and Habitat Creation: - Cnidarians, particularly corals, are known for their ability to create complex and diverse habitats. Coral reefs, for example, are among the most biodiverse ecosystems on the planet, supporting a wide range of marine life. - Coral reefs provide shelter, breeding grounds, and feeding areas for numerous species, including fish, crustaceans, and other invertebrates. They also protect coastlines from erosion and provide economic benefits through tourism and fisheries.

2. Nutrient Cycling and Energy Flow: - Cnidarians contribute to nutrient cycling and energy flow in marine ecosystems. They capture and consume prey, playing a role in the transfer of energy from lower trophic levels to higher ones. - When cnidarians feed, they release waste products that can be recycled by other organisms, contributing to the overall nutrient cycling in the ecosystem.

3. Symbiotic Relationships: - Many cnidarians form symbiotic relationships with other organisms. For example, coral reefs have a mutualistic relationship with photosynthetic algae called zooxanthellae. The algae provide corals with nutrients through photosynthesis, while the corals provide a protected environment for the algae to thrive. - Some cnidarians also form symbiotic relationships with fish and other organisms, providing them with shelter and protection in exchange for food or other benefits.

4. Indicator Species: - Cnidarians, especially corals, are considered indicator species for the health of marine ecosystems. Their sensitivity to environmental changes, such as temperature, pollution, and ocean acidification, makes them valuable indicators of ecosystem health and the impacts of climate change.

5. Medical and Scientific Research: - Cnidarians have also contributed to medical and scientific research. For example, certain compounds found in cnidarians have potential pharmaceutical applications, including the development of new drugs for various diseases. - Additionally, studying cnidarians helps scientists understand fundamental biological processes, such as nerve cell function and regeneration, which can have broader implications for human health and biology.

In conclusion, cnidarians, including jellyfish, corals, and sea anemones, play crucial roles in the natural world. They contribute to biodiversity, nutrient cycling, energy flow, and symbiotic relationships in marine ecosystems. Cnidarians also serve as indicator species for ecosystem health and have potential applications in medical and scientific research.