--%>

Do fishes have a closed or open circulatory system

Do fishes have a closed or open circulatory system? Describe the number of chambers does a fish heart contain? How does blood flow all through the fish body?

E

Expert

Verified

Since in every vertebrate, the circulatory system of fishes is closed, that is, blood flows merely in blood vessels. The fish heart has just two consecutive chambers: a thin-walled atrium and muscular ventricle. The arterial (or oxygenated) blood comes from gills and gains arteries in the direction of tissues, then venous blood is collected by the veins and reaches atrium of the heart passing to the ventricle which pumps the venous blood in the direction of gills to be again oxygenated

   Related Questions in Biology

  • Q : Morphological-Peroxisomes and lysosomes

    Write down the morphological, functional and chemical differences and similarities between peroxisomes and lysosomes?

  • Q : Define the term the genetic code Define

    Define the term the genetic code? Briefly explain it.

  • Q : Hospitality The essay assessment's

    The essay assessment's primary aim is to provide BSc (Hons) students with a vehicle to review and discuss research and associated textual evidence drawn from a range of hospitality, tourism and leisure businesses and organizations Topic-Developing countries must balance th

  • Q : Need Priority Model - Motivation -

    There are two types of needs-basic and secondary or acquired. Basic needs are important for -survival whereas acquired needs are not so important. We know various needs as felt by a man but do not know about their preferential order. A .H. Maslow solved this problem and presented a theory on prio

  • Q : Description of vitamins Give a brief

    Give a brief description of vitamins? And also write down the main vitamins needed by humans?

  • Q : Antibiotics use against fungi Write

    Write down the some antibiotics employed against fungi?

  • Q : Function of secretions of prostate and

    What is the function of the secretions of prostate, bulbourethral glands and the seminal vesicle within reproduction?

  • Q : Define the term Biomedical The word "

    The word "biomedical" covers an immense range of subjects-everything which relates biology to medicine. This can vary from the apparent such as Bio-chemistry, Anatomy, Physiology, Pharmacology, Microbiology, and Genetics to the less apparent such as B

  • Q : Description of tympanum Give a brief

    Give a brief description of tympanum? In which part of ear is it situated and also writes down its function?

  • Q : Managerial Roles Managerial Roles      

    Managerial Roles      to fulfill the multifarious functional responsibilities, managers assume multiple roles. A role is an organized set of behaviors. Henry Mints berg has iden