Gum doesn’t get a pair Ed
Answer:
the international astronomical union (IAU) downgraded the status of pluto to that of a dwarf planet because it did not meet the three criteria the IAU uses to define a full-sized planet essentially pluto meets all the criteria except one it has not cleared its neighboring region of other objects
Tracheal cartilage .
Explanation:
Trachea is also known as wind pipe. It acts as passage for air that enters through nasal cavity and migrates to the lungs. The trachea is made up of tracheal rings. This provides flexibility to the wind pipe. The trachea divides into two bronchi that enters the left and right lungs.It has a covering called epiglottis that prevents entry of food while swallowing.
