Descent of the testes is stimulated by the ________.
A. absence of the X chromosome
B. presence of the X chromosome
C. presence of estrogens
D. presence of Y chromosome
E. presence of testosterone
Answer: E
You might also like to view...
What feature of your ear accounts for its ability to regain its shape after it has been deformed or compressed?
A. The elastic fibers present in the ear's muscles B. The ear has a built-in memory based upon its overall size and shape C. The ear's skin is filled with elastic fibers that contract after being stretched D. There is an abundance of reticular fibers forming a dense meshwork E. The elastic fibers present in the ear's cartilage
The pouch at the proximal end of the large intestine is the ________
Fill in the blank(s) with correct word
Which of the following muscles is involved in crossing one leg over the other while in a sitting position?
A) the gastrocnemius B) the sartorius C) all of the hamstrings D) the quadriceps femoris
Which of the following typically results from a hypersecretion of glucocorticoids?
a. Addison's disease. b. Cushing syndrome. c. Type I diabetes. d. Virilizing tumor.