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Which of the Following Plays the Important Role of Exchanging

question 4

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Which of the following plays the important role of exchanging oxygen and nutrients or waste for the other vessels to transport?


Definitions:

Fraction

A mathematical expression representing a part of a whole, displayed as a numerator over a denominator.

Percentage

A numerical value representing a part of 100, signaled by a fraction or ratio.

Subtract

To take away a number or amount from another, leaving a difference.

Least Common Denominator

The smallest common multiple of the denominators of two or more fractions, used in addition and subtraction of fractions.

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