A is usually a thin, moist layer of cells that provides a large surface area for

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A is usually a thin, moist layer of cells that provides a large surface area for gas exchange with the environment Gas exchange between an organism and its environment takes place by Earthworms are Their entire outer body surface functions in gas exchange. Aquatic animals often exchange gases through Which are extensions of the body surface. Are the respiratory structures of insects? These networks of finely branched air tubes extend throughout the body, allowing for gas exchange directly with body cells Most terrestrial vertebrates have moist epithelium.. which are internal, subdivided sacs lined with most epithelium Except in insects and some small or very thin animals, gases are transported through an animal's body by a

Explanation / Answer

Building Vocabulary: Mechanisms of Gas Exchange

1. A Respiratory Surface is usually a thin, moist layer of cells that provides a large surface area for gas exchange with the environment.

2. Gas exchange between an organism and its environment takes place by Diffusion

3. Earthworms are Skin-Breathers their entire outer body surface functions in gas exchange.

4. Aquatic animals Often exchange gases through Gills, which are extensions of the body

surface.

5. Tracheal Systems are the respiratory structures of insects. These networks of finely branched air tubes extend throughout the body, allowing for gas exchange directly with body cells.

6. Most terrestrial vertebrates have Lungs, which are internal. subdivided sacs lined with moist epithelium.

7. Except in insects and some small very thin animals, gases are transported through an animal's body by a Circulatory System

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