Because their TEETH ARE MISALIGNED AND THEY USUALLY POSSESS LONG TONGUE. Respiratory illness is common in people who have down syndrome and their unique airway anatomical factors makes airway management difficult during respiratory distress. For instance, they have narrower upper airway and smaller trachea.
I really think that its the second one; Nihilist
Answer:
A living organism's position in the flow of energy through an ecosystem.
I need more points. That's why I am awnsering this, sorry.