Exoskeleton is the outer protective coat for some animals and  mammals. Advantages of exoskeleton include the safety to animal,  and ability to live on a variety of surfaces â¦ .The disadvantage  includes the restriction of growth and size.xoskeleton is the outer protective coat for some animals and  mammals. Advantages of exoskeleton include the safety to animal,  and ability to live on a variety of surfaces â¦ .
1 Volatile oils that dry out are generally more harmful to your health. 2  Mineral oil does not give off harmful vapour. 3  Water is used as a cutting fluid in some stones, but it dries even over short sessions, does not seem to lift filings as well as mineral oil, and remains on the tool after honing.
Why? Castor oil, a very pale yellow liquid extracted from the castor seeds of Ricinus Communis, is one of the most useful plant oils. Castor oil comes in different grades and is used as food additives, in cosmetics, in flavorings, as a mold inhibitor and in pharmaceuticals.Castor oil has a long history of medicinal uses both internally and externally, treating conditions ranging from arthritis to genital warts.f youâre thinking of using castor oil to bring back the glory, hereâs how: Since castor oil can be thick, dilute it with lighter oil like sweet almond oil or avocado oil. Apply to scalp, rub it in gently and wrap your hair with a plastic cap or towel.