Q.

Given below are two statements.

Statement I: Sponges, coelenterates and flatworms exchange O2 with CO2 by facilitated diffusion over their entire body surface.

Statement II: Sponges, coelenterates and flatworms lack special respiratory organs.

In light of the above statements, choose the correct answer from the options given below. 

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a

Both statement I and statement II are correct.

b

Both statement I and statement II are incorrect.

c

Statement I is correct but statement II is incorrect.

d

Statement I is incorrect but statement II is correct.

answer is D.

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Detailed Solution

Sponges, coelenterates and flatworms exchange O2 with CO2 by simple diffusion over their entire body surface.

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Given below are two statements.Statement I: Sponges, coelenterates and flatworms exchange O2 with CO2 by facilitated diffusion over their entire body surface.Statement II: Sponges, coelenterates and flatworms lack special respiratory organs.In light of the above statements, choose the correct answer from the options given below.