A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
E) If the assertion is false but reason is true
Correct Answer: B
Solution :
Inner lining of branchiostegites or gill-covers of Palaemon is not only thin, but membranous and highly vascular containing minute blood lacunae. These form large respiratory surface which absorb oxygen \[({{O}_{2}})\] dissolved in water and give out carbon dioxide.
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