What type of respiration do banana slugs use?

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Multiple Choice

What type of respiration do banana slugs use?

Explanation:
Banana slugs breathe air using a lung-like mantle cavity connected to the outside by a small opening called the pneumostome. This makes them pulmonate, air-breathing gastropods, where gas exchange occurs primarily through that mantle cavity rather than through external gills or a tracheal system. While moisture on the skin can contribute a bit to diffusion, the major mechanism is the air-breathing system via the pneumostome. Insects use a tracheal system, and aquatic mollusks rely on gills, so those options don’t fit for banana slugs.

Banana slugs breathe air using a lung-like mantle cavity connected to the outside by a small opening called the pneumostome. This makes them pulmonate, air-breathing gastropods, where gas exchange occurs primarily through that mantle cavity rather than through external gills or a tracheal system. While moisture on the skin can contribute a bit to diffusion, the major mechanism is the air-breathing system via the pneumostome. Insects use a tracheal system, and aquatic mollusks rely on gills, so those options don’t fit for banana slugs.

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