Vitamins and minerals are used by the body to supply energy
Indicate whether this statement is true or false.
F
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Adolescent sexual interaction
A. is limited to heterosexual relationships. B. largely determines sexual orientation. C. is an indicator of social maturity. D. usually takes place within the context of dating.
Pituitary dwarfism is due to inadequate secretion of _____ by the pituitary gland in children
A) aldosterone B) growth hormone C) somatostatin D) thyroxine
Identify which of the following is not a characteristic of ?:? T cells. (Select all that apply.)
a. Some express a homodimer of the CD8 ? chain. b. They do not express CD28. c. They are subject to MHC restriction. d. Most do not express either CD4 or CD8. e. Most circulating cells do not enter secondary lymphoid tissue. f. They undergo gene rearrangement. g. They originate from the same precursor cells as do ?:? T cells. h. Their response is solely dependent on the T-cell receptor. i. They make up the minority of resident T cells in tissues. j. Circulating cells express V?9:V?2.
Which of the following neoplasms is benign?
A) basal cell carcinoma B) malignant melanoma C) Kaposi's sarcoma D) none of the above