Which of the following is NOT a character of | vedclass

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(C) In an open circulatory system,blood is pumped by the heart into body cavities,where tissues are surrounded by the blood. This system lacks a compl

Vedclass · Accepted Answer

Presence of blood capillaries.

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(C) In an open circulatory system,blood is pumped by the heart into body cavities,where tissues are surrounded by the blood. This system lacks a complete network of blood vessels,meaning blood capillaries are absent. Key features of open circulation include: $1$. Blood flows at low pressure. $2$. The body cavity is known as the haemocoel. $3$. Respiratory pigments are often absent or dissolved in the plasma rather than contained in cells. Therefore,the presence of blood capillaries is a characteristic of a closed circulatory system,not an open one.

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

Which of the following is $NOT$ a character of open circulation?

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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

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