Because the sun is really hot and we'd die if they weren't there
Answer:
the structure is external gills
Explanation:
When a doctor refuses to care for a certain patient. This can be for numerous reasons, maybe they are not fit to undergo a surgery of some sort, or are being problematic. Either or the doctor nor the patient benefit form this. Doctor misses out on someone to help (i assume that’s the attitude of one working for the greater good) and the patient misses the opportunity to possibly get the help they need.
They are part of our immune system they help protecting your body infection,illnesses ,and syndromes etc
