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7. Which of the following organs are used for gaseous exchange in a mature toad?

A. Lungs
B. Skin
C. Gills
D. All of the above


Sagot :

Final answer:

Toads use their skin and lungs for gaseous exchange as they mature.


Explanation:

Amphibians, like toads, utilize their skin as an organ for gaseous exchange. The skin must remain moist for efficient gas exchange, facilitated by a dense network of capillaries below the skin surface. Additionally, as they mature, toads develop lungs that serve as an additional respiratory organ.


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