The price you are able to negotiate varies depending on the time of year. Believe it or not, buying during certain parts of the month can get you a better deal. It can even depend on the launch date of a new model year. Read our tips on the best time to buy a car.
fish do not shed their scales when they grow as boss man says.. one thing I learned is when a fish loses its scales or a scale...the fish will not grow at all until the scale/scales are fully replaced or repaired ...this is because all of the fishes energy and nutrition go into regrowing the missing scales.ne thing I learned is when a fish loses its scales or a scale...the fish will not grow at all until the scale/scales are fully replaced or repaired ...this is because all of the fishes energy and nutrition go into regrowing the missing scales.
Placoid scales are found in sharks and rays, and can vary greatly in external appearance. Scales of a White Shark. Photographer: Sue Lindsay Â© Australian Museum. Unlike the scales of bony fishes, placoid scales do not increase in size as the fish grows, instead new scales are added between older scales.Placoid scales are often referred to as denticles.Each placoid scale consists of a flattened rectangular base plate which is embedded in the fish, and variously developed structures, such as spines, which project posteriorly on the surface.The spines give many species a rough texture.here are large differences in the development of these spines between different species. Placoid scales are composed of a vascular (supplied with blood) inner core of pulp, a middle layer of dentine and a hard enamel-like outer layer of vitrodentine.