Answer:i think its 3. solar system
Explanation:
The Barnburners and other anti-slavery Democrats joined with some antislavery Whigs and the Liberty Party to form the Free Soil Party.
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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Here you go Buffalo soldiers were African American soldiers who mainly served on the Western frontier following the American Civil War. In 1866, six all-Black cavalry and infantry regiments were created after Congress passed the Army Organization Act.