To excite or inhibit an action potential in a receiving neuron, a neurotransmitter must cross the:

In a small, closed economy, national income (gdp) is $350 million for the current year. individuals have spent $100 million on the consumption of goods and services. they have paid a total of $60 million in taxes and the government has spent $75 million on goods and services this year. use this information and the national income identity to answer the questions. how much does the economy spend on investment?

Describe two reasons that cities developed along rivers during the industrial revolution. for full credit, your response must be at least 2 complete sentences.

The internet enables people to make better economic decisions because they can do which of the following