​Loewi Demonstrated That Synapses Operate by the Release of Chemicals

question 92

Multiple Choice

​Loewi demonstrated that synapses operate by the release of chemicals by ____.

• A)applying adrenaline directly to the heart muscle
• B)​collecting fluid from a stimulated frog's heart, transferring it to another frog's heart, and measuring that heart rate
• C)​measuring the speed of a dog's reflexes while the dog was under the influence of various drugs
• D)applying an extract of marijuana in eye drops and discovering that it dilated the pupils

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Definitions:

Foreign Exchange

Trading one currency for another or transforming one currency into a different currency.

Exchange Rate

The value of one currency for the purpose of conversion to another, indicating how much one country's currency is worth in terms of another's.

Foreign Exchange Rates

The price of one country's currency expressed in another country's currency, determining how much one currency is worth in terms of another.

Equality

The state of being equal, especially in status, rights, and opportunities.