Question

Охарактеризуйте органы выделения Кольчецов.

Answer 1

Ответ:

орган так и напишы простой и легко

Answer 2

Organs of Excretion in Cnidarians

Cnidarians, including jellyfish and sea anemones, have simple body structures and lack specialized organs for excretion. Instead, they rely on a network of cells called cnidocytes, which are responsible for capturing prey and defense mechanisms. The waste products produced by cnidarians are eliminated through diffusion across their body surface.

Excretion in Cnidarians

Cnidarians have a simple body plan consisting of two cell layers: the outer epidermis and the inner gastrodermis. The gastrodermis is responsible for digestion and absorption of nutrients, as well as excretion of waste products. Waste products, such as ammonia, are produced as a result of metabolic processes in the cells.

Diffusion as a Mode of Excretion

Cnidarians lack specialized excretory organs such as kidneys or nephrons found in more complex organisms. Instead, they rely on diffusion to eliminate waste products from their bodies. Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. Waste products, such as ammonia, diffuse across the body surface of cnidarians and are released into the surrounding water.

Conclusion

In summary, cnidarians, such as jellyfish and sea anemones, do not possess specialized organs for excretion. Instead, they rely on diffusion across their body surface to eliminate waste products. This simple excretory system is sufficient for their basic metabolic needs.