Pore
From the Simple English Wikipedia, the free encyclopedia that anyone can change
A pore, in general, is some form of opening, usually very small.
In biology:
- For skin, a pore is an opening in the surface of the skin that leads into a sebaceous gland that secretes oil to lubricate and protect the skin.
- In plants, pores, or stoma, are in leaves in order to aid in photosynthesis and respiration
- Other organic substances are porous, and they can be very light, such as wood and the bones of some birds