Nutritional guidelines encourage consumption of adequate animal protein to help prevent formation of precancerous tumors
a. True
b. False
Indicate whether the statement is true or false
False
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42 years old, Stephanie Goldstein developed occasional blurred and double vision, numbness and ‘pins and needles' in her arms and legs (paresthesia), and bladder incontinence
After a month of these symptoms she went to her doctor, who sent her to the neurology specialist. An MRI scan revealed areas of demyelination in the central nervous system (CNS), and Stephanie was diagnosed with the autoimmune disease multiple sclerosis (MS). Which of the following best explains why some people are susceptible to the development of MS? a. Negative selection of autoreactive T cells occurs during T-cell development. b. Apoptosis of autoreactive B cells occurs in the bone marrow during B-cell development. c. An inability to produce immunological tolerance toward CNS-derived constituents results in the generation of self-reactive lymphocytes. d. An immunodeficiency inhibiting somatic recombination of immunoglobulins and T-cell receptors results in impaired lymphocyte development. e. Regulatory T cells fail to activate autoreactive T cells in secondary lymphoid organs.
It is estimated that approximately _________ of youth in the world are not physically active enough to promote their health.
A. 20% B. 50% C. 80% D. 90%
The meaning of the prefix meta- is:
A) beyond. B) over. C) between, change. D) all of the above
AIDS is the cause of HIV.
Answer the following statement true (T) or false (F)