Animation 2.13: Loewi's Experiment Demonstrating Chemical TransmissionClick on the above link to access the Interactive eBook. Once you've signed in, scroll to page 34 and watch the video. When you've finished watching the video, come back to the test and answer the following questions:When Otto Loewi electrically stimulated the vagus nerve of one heart, causing it to slow down, what happened after he transferred the salt solution from that first heart to the second heart?
A. It began to beat faster.
B. It stopped beating.
C. It also slowed down.
D. There was no change in heart rate.
Answer: C
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