Regardless of the kind, every wave has an amplitude. Amplitude is the maximum displacement of points on a wave, which you can think of as the degree or intensity of change. This maximum displacement is measured from the equilibrium position.The picture below shows a diagram of a sine wave.mplitude is an important parameter of waves and is the maximum displacement of points on a wave. Stated another way, amplitude is the vertical distance between a peak or a valley and the equilibrium point. Frequency is the number of wave cycles passing a point per unit time.
Darkfield Digital Image Gallery Dogfish Shark Placoid Scales Dogfish sharks are small sharks belonging to one of three families: the dogfish shark family, Squalidae; the requiem shark family, Carcharhinidae; and the cat shark family, Scyliorhinidae.he green dogfish, along with several other members of the dogfish shark family, is luminescent. Scales are small plates that form part of the skin of certain animals. They provide protection from the environment and from predators. Sharks have placoid scales, bony, spiny projections with an enamel-like covering.
Scale insects are rather unique in that they are immobile for most of their life cycle, and they show little resemblance to the usual form of insects. The soft scales have a covering made of waxy secretions. The brown soft scale (Coccus hesperidum L.) is one of the most common soft scales. greenhouses and on houseplants in our part of the country. The brown soft scale is a rather flat insect, oval in. shape, often broader at the hind end, and variable in color, but usually yellowish brown, sometimes with a green. tint. The adult scales are approximately 3-4 mm long, and 2 mm wide.