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Which of the following have open circulatory system ? - Hydra, Ctenoplana, Palaemon, Herdmania, Octopus, Amphioxus, Hirudinaria?
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Which of the following have open circulatory system ? - Hydra, Ctenopl...
The correct answer is palaemon because its belong to phylum arthropoda.
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Which of the following have open circulatory system ? - Hydra, Ctenopl...
Open Circulatory System

An open circulatory system is a type of circulatory system in which the blood is not enclosed in vessels but is pumped through open spaces called sinuses, where it comes into direct contact with tissues and organs.

Animals with Open Circulatory System

The following animals have an open circulatory system:


  • Hydra: Hydra is a freshwater animal that belongs to the phylum Cnidaria. It has a simple body plan and an open circulatory system that enables the distribution of nutrients and oxygen to its tissues.


  • Ctenoplana: Ctenoplana is a marine animal that belongs to the phylum Ctenophora. It has a transparent, gelatinous body and an open circulatory system that helps in the exchange of gases and nutrients.


  • Palaemon: Palaemon is a freshwater shrimp that belongs to the phylum Arthropoda. It has an open circulatory system that helps in the transport of nutrients and gases to its organs.


  • Herdmania: Herdmania is a marine animal that belongs to the phylum Chordata. It has an open circulatory system that helps in the distribution of nutrients and oxygen to its tissues.


  • Amphioxus: Amphioxus is a marine animal that belongs to the phylum Chordata. It has an open circulatory system that helps in the transport of nutrients and gases to its organs.


  • Hirudinaria: Hirudinaria is a freshwater leech that belongs to the phylum Annelida. It has an open circulatory system that helps in the distribution of nutrients and oxygen to its tissues.



Animals without Open Circulatory System

The following animals do not have an open circulatory system:


  • Octopus: Octopus is a marine animal that belongs to the phylum Mollusca. It has a closed circulatory system that helps in the transport of nutrients and gases to its organs.

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Which of the following have open circulatory system ? - Hydra, Ctenoplana, Palaemon, Herdmania, Octopus, Amphioxus, Hirudinaria?
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Which of the following have open circulatory system ? - Hydra, Ctenoplana, Palaemon, Herdmania, Octopus, Amphioxus, Hirudinaria? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following have open circulatory system ? - Hydra, Ctenoplana, Palaemon, Herdmania, Octopus, Amphioxus, Hirudinaria? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following have open circulatory system ? - Hydra, Ctenoplana, Palaemon, Herdmania, Octopus, Amphioxus, Hirudinaria?.
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