Other insects have chewing mouthparts and eat leaves or other plant matter. Some insects bite or pinch, and others pierce and suck blood or plant fluids. The pair of antennae may have obvious segments, or look like a feather. They come in different forms and are a clue to identifying the insect.ther insects have chewing mouthparts and eat leaves or other plant matter. Some insects bite or pinch, and others pierce and suck blood or plant fluids. The pair of antennae may have obvious segments, or look like a feather. They come in different forms and are a clue to identifying the insect.
The integumentary system is the body's first line of defense against bacteria, viruses, and other pathogens. It also helps to provide protection from harmful ultraviolet radiation. The skin is a sensory organ in that it has receptors for detecting heat and cold, touch, pressure, and pain.
What is the Integumentary System The skin -- a complex set of organs that covers and protects body. Name the organs that are involved in the integumentary system. Skin, hair, nails, and sebaceous (sweat and oil) glands. Name the functions of the integumentary system. Waterproof, cushion, protect the deeper tissues, excrete waste, regulate temperature, provide sensory input and synthesize vitamin D.