The male reproductive system arises from
a) Paramesonephric (Mullerian) ducts
b) Mesonephric (Wolffian) ducts
b
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Which of the following is not a connective tissue?
A. Blood B. Skeletal muscle C. Cartilage D. Areolar tissue E. Osseous tissue
Which valve prevents the backflow of blood into the left ventricle when the ventricles relax?
A. Aortic semilunar valve B. Right atrioventricular valve C. Left atrioventricular valve D. Pulmonary semilunar valve E. None of these answers is correct.
The surface of immune system ____ contains receptors for a variety of central nervous system chemical messengers.
A. sex hormones growth B. hormones catecholamines C. lymphocytes D. antibodies
All endocrine glands contain ducts
a. True b. False Indicate whether the statement is true or false