Question 7 Synaptic vesicles contain chemicals called neurotransmitters. What is the function of these neurotransmitters?
Multiple choice question.

A)
They act as electrical signals to generate action potentials.

B)
They act as chemical signals that relay information between neurons.

C)
They act as chemical signals to physically move the neurons closer together.

D)
They act as electrical signals to stop the flow of calcium ions into the synaptic cleft between the two neurons.

Acar company is testing seatbelts using crash test dummies. the company finds that when cars come to a sudden stop, the crash test dummies' bodies continue to move forward. the seat belt keeps the crash test dummies from hitting the back of the seat in front of them. why do the crash test dummies' bodies continue to move forward even though the car stopped? a. the friction opposing their bodies' movement keeps them in motion. b. the inertia of their bodies keeps them in motion. c. the forward acceleration of the car keeps them in motion. d. the gravity pulling on the car keeps them in motion.

What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion