Suppose You Use the URLGet Program in Section 23

question 20

Multiple Choice

Suppose you use the URLGet program in Section 23.5 to get a web page that does not exist on a server (which does exist) .Assuming that the server is otherwise working properly, what will happen?

• A)The call to openConnection will throw an exception.
• B)The call to getResponseCode will return the error code 404.
• C)The call to getResponseMessage will return null.
• D)The call to getInputStream will throw an exception.

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Definitions:

Presynaptic Membrane

The part of the neuron that faces the synaptic cleft and is responsible for the release of neurotransmitters to signal adjacent neurons.

Depolarization

A decrease in the charge difference across a plasma membrane; may result in an action potential in a neuron or muscle cell.

Squid Axon Experiments

Classic scientific experiments conducted to understand the properties of nerve cells by studying the giant axon of squid.

Alan Hodgkin

A British physiologist and biophysicist who, along with Andrew Huxley, elucidated the ionic mechanism underlying nerve impulse transmission, work for which they received the Nobel Prize.