Which of the following statement is correct?
(1) Flatworms exchange Oxygen with
carbondioxide by simple diffusion over
their entire body surface.
(2) Larynx is a bony box which help in sound
production
(3) Epiglottis is made up of collagen fibrous
connective tissue.
(4) in birds larynx is a sound producing organ.
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Answer:
flatworm exchange oxygen with carbon dioxide by simple diffusion over their entire body surface
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