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When Sam sees a number, he sees each as a unique color. Less frequently, he also hears different musical notes for different numbers. Sam’s colorful and musical experiences of numbers may indicate that Sam has ___________.

The glial cells responsible for maintaining the blood-brain barrier are the?

Where does fertilization usually occur in the female reproductive system?

Jung is interested in studying depression. She uses the number of potato chips a person eats to measure depression. Jung’s use of potato chips eaten to measure depression is high in validity.

When he was in college, Gabriel spent lots of time learning new skills and keeping up with current events. Now that he is in his 40’s, he spends more time doing things he enjoys such as reading books. His change in behavior would be best explained by (the) __________.

The smallest functional unit of a muscle is the:

Dorian naturally feels excited when a friend says hello to him. Since getting a Facebook account, Dorian feels excited when he reads messages on Facebook. After a while, he feels excited when he receives an email telling him that he has a message on Facebook. Dorian has developed a conditioned response to the email notifications because they are associated with Facebook messages, the original conditioned stimulus. This is an example of ____________.

Which hormone is produced by the kidneys to stimulate production of red blood cells by the bone marrow?

According to research, having children tends to increase parents’ happiness and marital satisfaction

The portion of the renal tubule closest to the glomerulus is the ?