Why do hypothesis need to be testable

Astructural difference between the trachea and esophagus that prevents the trachea from collapsing is the presence of: a) smooth muscle b) skeletal muscle c) respiratory cilia d) rings of cartilage

Atch each muscle name with its corresponding feature. internal rectus biceps abductor number of origins action location fiber direction

Courts that use a landmark case as precedent for a decision are using an earlier case as a guide. changing the previous case’s decision. using a third party to review the case. sending the case to a higher court for review.