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What side of the worm faces up when placed in the tray when dissection?

User Annetta
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The side of the worm that faces up when placed in the tray for dissection is the smoother side.

You can observe the organs of these tiny creatures by dissecting a preserved earthworm. In dissecting a worm, lay the worm on your dissecting tray with its dorsal side facing up.

User Manfred Sorg
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