Answer: In his experiment, Pavlov used a metronome as his neutral stimulus. By itself the metronome did not elicit a response from the dogs. Next, <u>Pavlov began the conditioning procedure, whereby the clicking metronome was introduced just before he gave food to his dogs.</u>
Answer is A.
:)
4 copies of a DNA molecule result from two replications of a single DNA molecule
<span>When someone is performing a very routine phlebotomy, which is the act of inserting a needle in a vein to draw blood, the most commonly used needle are needles with gauges of 20 or 21.</span>
