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.
Clary sage is the essential oil that is most widely used to treat vision problems. It is placed in the eye, so advice from an optometrist is important before use. Clary sage is used as a cleanser for the eyes. It can also be used to clear eye sight due to foggy vision or an injury to the eyes.actors that influence the safety of essential oils include. 1. Quality of essential oil being utilized: Adulterated essential oils increase the likelihood of an adverse response and hence the need for pure, authentic, and genuine essential oils is of the utmost importance.