Nicholas, a 37-year-old man, undergoes a specific antigen test called the PSA test and finds that he has high levels of PSA. Doctors diagnose that he has a benign condition in which a gland, which is located between the penis and the bladder, is enlarging, and this enlargement is blocking the flow of urine. In this scenario, Nicholas is most likely suffering from the benign condition called ________.
A. toxic shock syndrome
B. endometriosis
C. prostatitis
D. prostatic hyperplasia
Answer: D
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The region consisting of the head, neck, and arms is served by nerves exiting the _________ division of the spinal cord
a. sacral b. lumbar c. thoracic d. cervical
A fertilized cell is called a(n) ______________ when it consists of identical cells that have not begun to take on specific functions, and a(n) ______________ once the cells begin to differentiate and form bodily structures and organs.
a. zygote; embryo b. blastocyst; fetus c. embryo; fetus d. blastocyst; embryo
At Bentley Elementary School, teachers pass out "Bentley bucks" to students who turn in papers on time, obey the teacher, and finish their homework. The paper "bucks" can be traded in at the end of the week for special treats or game-playing time on the classroom computer. This system most resembles a __________.
A. participant modeling technique B. contingency contract C. group extinction procedure D. token economy
The t test is used to compare the means from how many groups?
a. 2 b. 3 c. 4 d. 5