Question

Which of the following statements is/are correct about the process of respiration in multicellular organisms? i) The surface where exchange of gases takes place should be fine and delicate. ii) The structures where exchange of gases takes place should have large surface area iii) The structures which are involved in exchange of gases are usually placed within the body for protection. a) Only i) b) only ii) c) i) and ii) d) i), ii) and iii)​

Answer 1

Answer:

option d

Explanation:

Answer 2

Answer:

opinion d i),ii) and iii)

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