The labial palps are attached to the labium, or lower lip. These palps each have three segments. Like the rest of the grasshopper's body, the palps are coated with chitin, a hard, rigid, waxy material that makes up the animal's exoskeleton. Palps have sensory hairs and chemoreceptors on their outer surfaces.
A Digital TV Converter Box is an electronic device that converts the free over-the-air digital signal into an analog signal viewable on older analog television set. You will still need an antenna or rabbit ears.
A catalytic converter is an emissions control device that converts toxic pollutants in exhaust gas to less toxic pollutants by catalyzing a redox reaction (oxidation or reduction). The washcoat. 2  A washcoat is a carrier for the catalytic materials and is used to disperse the materials over a large surface area. 3  Aluminum oxide, titanium dioxide, silicon dioxide, or a mixture of silica and alumina can be used. 4  The catalytic materials are suspended in the washcoat prior to applying to the core.