What is the root word or base word? dissapointment

Which of these terms are associated with communication between neurons? chemical signals, electrical signals, synapse chemical signals, synapse, neurotransmitters synapse, electrical signals, chemical signals synapse, electrical signals, neurotransmitters

Iqualified for the horatio alger scholarship. it is awarded based on financial need, but students must have a 2.0 gpa to apply. to qualify, students must pursue a degree at a four-year college.

Dan runs a busy desktop-publishing company. his company want to increase its exposure, so it runs a new a new promotion each week. the tool dan most likely choses to publicize this is a promotion is a