While holding a flashlight you noticed the size of the lighted area was changing as you were walking. Write a hypothesis proposing what factor is causing the size of the area to change.

Which one of the following causes people to go through a cycle of losing weight, gaining it back, then lose it again

Genetically engineered human insulin is used to treat which disease?

You are travelling on a long non-stop flight from tahiti to tampa. you have been in the air for about 7 hours and have not moved, since you boarded the plane at tahiti. you need to use the rest room and on standing up feel dizzy. the best explanation for your dizziness