Many barber schools cost between $6,500 to $10,000 per year, but the price depends on a number of factors, discussed below. How much does barber school cost? Tuition can range from $2,000 to $16,000 depending on the school. Different states have different requirements and regulations that each barber school must fulfill. The basic cost of living should be taken into account as well. Most barber schools do not offer housing.
Sea urchins or urchins (/ËÉrtÊÉªnz/), archaically called sea hedgehogs, are small, spiny, globular animals that, with their close kin, such as sand dollars, constitute the class Echinoidea of the echinoderm phylum. About 950 species of echinoids inhabit all oceans from the intertidal to 5000 m deep.ea urchins feed mainly on algae, but can also feed on sea cucumbers and a wide range of invertebrates, such as mussels, polychaetes, sponges, brittle stars, and crinoids.
The lower half of a sea urchin's body is referred to as the oral surface, because it contains the mouth, while the upper half is the aboral surface. The internal organs are enclosed in a hard shell or  test  composed of fused plates of calcium carbonate covered by a thin dermis and epidermis.ommon colors include black and dull shades of green, olive, brown, purple, blue, and red. Sea urchins move slowly, and feed on mostly algae. Sea otters, starfish, wolf eels, triggerfish, and other predators hunt and feed on sea urchins.