What do the tropics have to do with place?

What is the difference between homesick and home sick? What would the results be if 2 quarts of water was drank before blood test? Does scarlet fever have endospores? Will drinking alcohol enhance the sideeffects of the mmr vaccine? What is the structure of the atrioventricular valve? Treatment of disease by various approaches? When do tonic seizures most often occur? A mother gave birth to twin boys but they were born in different years and on different days And no the boys are not part of 2 sets How can this be possible? Where are the nose vains located? What are congenital malformations? In which digestive system does the blood absorb nutrients? What is a Normal level of thyroid hormone output? Can a person have 2 kidneys implanted if they are healthy so now they have 4 kidneys or will they die of dehydration because they make too much urine? What two things are trapped and swallowed at he back of the throat? Did you miss a period because you were sick? Why some girls don't come their period on exact time? How long should your knee be swollen and red after knee replacement? What gender is affected most by hpv? How did Lilliputians affected by the fact that their eyesight was adapted to their scale? What was the affected area in Australia during the bubonic plague?