
Почему у ракообразных сердце на спинной стороне


Ответы на вопрос




Why do crustaceans have their hearts on the back?
Crustaceans have their hearts located on their dorsal side, which is the upper side of their body. This unique positioning of the heart is due to the structure and physiology of crustaceans. The heart of a crustacean is a tubular structure that runs along the back, and it is part of the open circulatory system found in these animals. The open circulatory system allows the blood to flow freely within the body cavity, bathing the internal organs directly. The heart pumps the blood into the body cavity, where it comes into direct contact with the tissues and organs, facilitating the exchange of gases, nutrients, and waste products.
This positioning of the heart on the back is an adaptation that suits the needs of crustaceans, allowing for efficient circulation within their open circulatory system. The unique anatomy and physiology of crustaceans have evolved to support their survival and functioning in their respective environments.
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