What type of tissue is cardiac tissue?
a. epithelial tissue
b. connective tissue
c. muscle tissue
d. nervous tissue
c. muscle tissue
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Which of the following organs is least likely to be damaged in an automobile accident?
a) stomach b) intestines c) urinary bladder d) liver
Tamoxifen and raloxifene act by
A) breaking up cancer cell DNA. B) depriving cancer cell of growth factors. C) blocking estrogen receptors. D) activating progesterone receptors.
Which of the following structures is the opening that connects the atria in the fetal heart?
A) trabeculae carneae B) conus arteriosus C) foramen ovale D) aortic vestibule
T cells or B cells that are capable of responding to a specific antigen by binding to it with antigen-specific receptors that appear on the lymphocyte's surface are considered ________
A) clones B) complement C) self-tolerant D) immunocompetent