How is the US unemployment rate determined

Potentially, a large spill can be: a) an environmental threat, if it gets into drains b) a dangerous fire hazard c) harmful to individuals d) all of the above

Sam and ben have discovered some strange animals living in the woods behind their house. ben is excited because he believes they are marsupials, an animal he's never observed in the wild before. his brother is sure it is not. what feature should the boys consider in deciding whether the animals are marsupials?

An individual who is experiencing a prolonged period of stress would likely have levels of circulating than an individual who was not experiencing stress.