Claudia has not left her house in ten years. if she steps on the front porch she becomes so uneasy that she has to return inside. claudia is most likely suffering from which is a(n) disorder.

There are 25 elements found in living things. how many of these elements are found in some organisms but not all? 1 , 6 , 19 , 25

17 points! ! (explain your answer)

Which statement is a good description of a model? a) models are a description of nature based only on one or two variables. b) models are testable ideas but they are not very to most people. c) models are a description of nature that predicts more accurately than real events. d) models are an approximiation of a real system that omits all but most essential variables in a system.