Select the correct option regarding the circulatory system.

  • A
    In an open circulatory system,blood is pumped out of the heart into blood vessels that open into body cavities (sinuses).
  • B
    $A$ closed circulatory system is more advantageous as the flow of fluid can be more precisely regulated.
  • C
    In a closed circulatory system,blood flow can be easily controlled.
  • D
    All of the above.

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Similar Questions

Which of the following organs is known as the blood bank of the body?

Match the Column-$I$ and Column-$II$.
Column-$I$Column-$II$
$a.$ Joint diastole$(i)$ $0.8$ second
$b.$ Heart beat$(ii)$ All four chambers of heart are relaxed.
$c.$ Cardiac cycle$(iii)$ $72$ times/min
$d.$ Stroke volume$(iv)$ $70$ mL

Choose the correct answer from the options given below:

Which of the following is an incorrect combination?

Analogy type questions:
$(1)$ Fish : Single circulation :: Amphibians : ...........
$(2)$ Between right atrium and right ventricle : Tricuspid valve :: Between left atrium and left ventricle : .............

Match column $I$ with column $II$:
Column $I$Column $II$
$(a)$ Eosinophils$(i)$ Coagulation
$(b)$ $RBC$$(ii)$ Universal Recipient
$(c)$ $AB$ Group$(iii)$ Resist Infections
$(d)$ Platelets$(iv)$ Contraction of Heart
$(e)$ Systole$(v)$ Gas transport

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