The blood brain barrier:

Pumps are used to move molecules:

The threshold potential of an excitable nerve cell:

Information pertaining to the strength of a stimulus, is conveyed to the spinal cord or brain by:

The trigger zone of a neuron:

Which of the following cells is/are not part of the peripheral nervous system?

Which of the following is/are an advantage of long-term (i.e., permanent) memory as compared to short-term (i.e., working) memory?

The stay-puff marshmallow man has a density of 1.54 g/m3 and a mass of 5560 g. What is the volume of the marshmallow man? Report answer to the correct number of significant figures.

If someone takes 5,698,000 seconds to hike a portion the Appalachian trail, how many days would this be?

A student does not zero the balance before placing a sample on the balance and then records this mass as the mass of the sample. What type of error is described in this example?