Which condition occurs as the brain neurons that produce the neurotransmitter dopamine begin to malfunction and progressively die?

Which of the following typically presents a problem that occurs when someone calls 911 with a cell phone?

A) Determining the type of emergency B) Background noise and interference C) Determining the location of the caller D) Verifying the type of response needed

What stimulates production of erythropoietin?

a. Decreased red cell number in the bone marrow b. Increased peripheral red cell number c. Decreased iron stores d. Decreased oxygen level in tissue