a)i) Thin-Enables the respiratory gases to pass through short distances
ii)Moist-enables the respiratory gases to dissolve and be transported easily
b) i)Moist
ii)large surface area to volume ratio
ii) highly vascularised,thin walled
c) Thick inner wall than outer walls to control the opening and closing of stomata
chrispohmomanyi answered the question on February 19, 2018 at 09:31
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