Part of our Human Body Unit was to take a closer look at at another body system. We spent the afternoon dissecting worms. Why worms? Well, even though they don't have a skeleton and can't walk upright, worms do have many of the same things people do to survive. Worms move around, eat, breathe, reproduce and defend themselves. They are sensitive to temperature, moisture, light and vibrations.
The cuticle is the worm's outermost body wall.
Beneath the cuticle are: the epidermis, which is like our skin; a layer of nerve tissue which performs like our sense of touch; and circular and longitudinal muscles for locomotion.
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