Blood is a special connective tissue consisting of a fluid matrix, plasma, and formed elements.
Assertion (A): Blood serves as the primary transport medium in higher organisms including humans. Reason (R): Blood is a special connective tissue consisting of a fluid matrix called plasma and formed elements.
Correct answer: A — If both assertion and reason are true and the reason is the correct explanation of the assertion.
Both statements are true from NCERT. NCERT states “Blood is the most commonly used body fluid by most of the higher organisms, including humans, for this purpose [transport]” (Assertion) and “Blood is a special connective tissue consisting of a fluid matrix, plasma, and formed elements” (Reason). The structural composition explains WHY blood can serve as transport medium.
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