When Loewi triggered a nerve that affected a frog's heart rate, he was able to remove fluid from the region surrounding the heart, transfer it to another frog's heart, and subsequently affect that frog's heart rate as well.
<h3>What are Neurotransmitters?
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Neurotransmitters, which are organic compounds, play a major role in the language that neurons use to communicate with one another and with their final targets. Following electrical stimulation, these substances are produced and act on their particular receptors to start a response that can be as simple as a muscle contraction or as extremely complex as starting a chain reaction that eventually changes how the organism behaves. Neurotransmitters can have multiple functions; depending on where they act, they can be neuromodulators or, in some cases, neurohormones.
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Nations form alliances in order to achieve goals that otherwise wouldn't be possible. For example, NATO, or the North Atlantic Treaty Organization, a coalition of countries in North America and Europe, agree to defend one another in case of attack from an outside party. This is clearly beneficial, because this intergovernmental support both makes an outside attack less probable, and if it occurs, easier to handle. Another example is NAFTA, or the North American Free Trade Agreement. Shared among Canada, the US, and Mexico, this alliance eradicated trade barriers within these countries. Another beneficial alliance, this agreement increases international trade due to lower costs and thus improves the international economy.
Five factors that spurred industrial growth in the late 1800's are Abundant natural resources (coal, iron, oil); Abundant labor supply; Railroads; Labor saving technological advances (new patents) and Pro-Business government policies. Several factors led to the rise of U.S. industrialization in the late 1800's.
Answer:
is there any options? if not it might be Haiti
