A goiter is an enlargement of the thyroid gland that is associated with abnormal thyroid function. The worldwide incidence of goiters is about 16%. Third-world countries are especially vulnerable to serious health problems related to goiters. What element is deficient in the diet of most of the people who have goiters?

A. sodium
B. carbon
C. iron
D. iodine


D. iodine

Biology & Microbiology

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Where would you expect to find proteins responsible for controlling the substances that enter and leave mitochondria?

a. plasma membrane of the cell b. inner mitochondrial membrane

c. outer mitochondrial membrane d. nuclear membrane e. lysosomal membrane

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Which of the following is part of the innate immune response?

a. antibodies b. vaccines c. natural killer cells d. T cells and B cells

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Which is an example of Müllerian mimicry?

A. A skunk uses white and black as coloration to warn predators that dealing with them will be unpleasant. B. The unpalatable viceroy butterfly mimics the poisonous monarch butterfly. C. Weeds mimic the form and color of an agricultural plant to avoid being weeded by the farmer.

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True/False: Fever and inflammation are normal body responses to injury or infection, and it may be best to withhold treatment in some cases.

What will be an ideal response?

Biology & Microbiology