--%>

Circulatory and respiratory systems

Do echinoderms contain circulatory and respiratory systems?

E

Expert

Verified

In echinoderms, there are not well-defined respiratory (that is, with the exception of holothurian group) and circulatory systems. The ambulacral hydrovascular system executes the function of such systems.

   Related Questions in Biology

  • Q : Aerobic cellular respiration What

    What occurs when supply of the oxygen is insufficient in order to maintain aerobic cellular respiration during the muscle exercise?

  • Q : Categorization of living beings Name

    Name the Biology field which studies the categorization of living beings? Answer: The Biology field which studies the categorization of living beings is termed as Ta

  • Q : Factors influencing photosynthesis and

    Write down the factors which influencing photosynthesis also interferes with gross primary productivity.

  • Q : Define the term mycorrhizas Define the

    Define the term mycorrhizas? How does each and every participant benefit in this ecological interaction?

  • Q : Precipitation reaction Briefly explain

    Briefly explain regarding precipitation reaction.

  • Q : State American Disabilities Act or ADA

    American Disabilities Act (ADA): The legislation passed in the year 1990 which prohibits discrimination against people with disabilities. Below this Act, discrimination against a disabled person is unlawful in transportation, employment, public accomm

  • Q : Arteries-arterial vessels-arterioles

    What so you mean by the arteries, arterial vessels, and arterioles?

  • Q : Streptococcus pneumoniae Streptococcus

    Streptococcus pneumoniae exist in 84 known antigenic types. Each type differs from the others in the structure of its polysaccharide capsule known as serotypes. Therefore, from the point of view of the adaptive immune system, each and every serotype o

  • Q : Describe the term excretion Describe

    Describe the term excretion? Answer: Excretion in Physiology is the process of removal of metabolic wastes and other toxic materials from the body.

  • Q : Explain all steps and follow a logical

    Demonstrate understanding and explain all steps and follow a logical train of thought. Clearly describe all design rationale. Include all references.