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.
The integumentary system consists of the skin, hair, nails, the subcutaneous tissue below the skin, and assorted. glands. Functions of the Integumentary System. â¢ Protection against injury and infection. â¢ Regulates body temperature. â¢ Sensory perception. â¢ Regulates water loss. â¢ Chemical synthesis. Protection â covers and protects the entire body against injury and infection. Physical barriers - continuity of the skin and hardness of keratinzed cells. â¢ Due to the skinâs physical characteristics such as the keratinized cells and. waterproofing properties of the glycolipids.