Hemoglobin consists of four heme polypeptide chains and four iron-containing globin groups.
Indicate whether the statement is true or false.
Ans: False
Health & Biomechanics
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When a B cell encounters its corresponding antigen, it expresses more ________ in order to be a
more effective antigen presenting cell. A) IL-7 receptor B) IgD C) MHC Class I D) IgM E) MHC Class II
Health & Biomechanics
HIV gp 120 binds to CD4 on
a. T cells b. macrophages c. dendritic cells d. A and C e. all of the above
Health & Biomechanics
The pharyngeal tonsils are the ________.
Fill in the blank(s) with the appropriate word(s).
Health & Biomechanics
Positive self-esteem is important to health because
A. people with high self-esteem experience less adversity. B. it increases intelligence. C. people are then more likely to take responsibility for their health. D. it increases health knowledge.
Health & Biomechanics