Perform the pairwise-disjointness test for each non-terminal. Is this grammar dis-joint? why or why not?.

47. a student is frightened by a loud noise, which results in a hormone being released into the blood. the hormone causes the student's heart to beat rapidly. the two systems that work together to cause this reaction are the endo- crine system that secretes the hormone and the (1) nervous system (3) excretory system (2) reproductive system (4) digestive system

Whats the definition of digital literacy

If an article is reviewed by one or more experts in the field, it's called a. a reliable source. b. expert-reviewed. c. peer-reviewed. d. a valid source.