Pepsin works best in which type of environment? A
acidic, only
B
basic, only
C neutral
D
sometimes acidic, sometimes basic

Each pair of clay balls represents two planetesimals. if each planetesimal is composed of the same material and is separated he the same distance, which pair experiences the frayed gravitational attraction?

During an experiment, readings for blood pressure in a persons body were found to be constant . however , when he measured by a different blood pressure cuff , the readings differed by 15 points for each reading. this difference indicates that the results are

What problem would a person most likely have if her kidney did not work correctly?