3) Give one function of Meibomian gland:​

abnormal gland function. As we know, the meibomian glands secrete the meibum responsible for the formation of the tear film's outer layer. The meibum aids in reducing the evaporation of tears from the front surface of the eye, increasing the surface tension and forming an optically superior tear meniscus.

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the answer is c. it will give up it's valence electron to the other atom.