Question

ПОМОГИТЕ ПОЖАЛУЙСТА НУЖНО ОЧЕНЬ СРОЧНО. 1.Одной из функций плавательного пузыря у рыб является... 1)Быстрое переваривание пищи 2)Усиление звука (рыбы лучше слышат) 3)Является выделительным органом 4)Все ответы верны

Answer 1

Не 2, следовательно и не 4

Answer 2

Function of the Swim Bladder in Fish

The swim bladder is an organ found in many species of fish that helps them control their buoyancy and maintain their position in the water column. It is an internal gas-filled sac located in the abdominal cavity of the fish. The swim bladder has several important functions, including:

1) Buoyancy control: One of the main functions of the swim bladder is to help fish control their buoyancy. By adjusting the amount of gas in the swim bladder, fish can increase or decrease their overall density, allowing them to either float or sink in the water. This ability to control buoyancy is crucial for fish to maintain their position in the water column and conserve energy while swimming.

2) Sound production and hearing: In some fish species, the swim bladder also plays a role in sound production and hearing. The swim bladder can act as a resonating chamber, amplifying sounds produced by the fish and allowing them to communicate with other individuals. Additionally, the swim bladder can function as an acoustic receiver, allowing fish to detect and interpret sounds in their environment. This is particularly important for species that rely on sound for communication, navigation, and finding prey.

3) Gas exchange: The swim bladder also serves as a site for gas exchange in some fish species. In certain fish, the swim bladder is connected to the digestive system via a duct called the pneumatic duct. This allows the fish to exchange gases, such as oxygen and carbon dioxide, between the swim bladder and the bloodstream. This adaptation allows fish to regulate the gas content of the swim bladder and maintain proper buoyancy.

Based on the given options, the correct answer to the question is 3) The swim bladder is a secretory organ. The swim bladder is not involved in the rapid digestion of food (option 1), nor does it directly enhance the fish's hearing (option 2). While the swim bladder does play a role in buoyancy control and gas exchange, it is not involved in all of the functions mentioned in the options. Therefore, option 4 is incorrect.

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