An organ is a group of specialized cells that secrete materials used elsewhere in the body.?
Indicate whether the statement is true or false
False
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Oxygen is the primary raw material for new living material.
Answer the following statement true (T) or false (F)
The trace element needed as a cofactor for hemoglobin synthesis is
A) zinc. B) copper. C) cobalt. D) iodine. E) silicon.
Keratinocytes are an important epidermal cell because they ________.
A) produce a fibrous protein that gives the skin much of its protective properties B) are able to transform from living cells to plasma membranes and still function C) are able to reproduce sporadically as needed D) are a powerful defense against damaging UV rays
Filtrate reabsorption that occurs regardless of the concentration and volume of urine produced is referred to as ________.
A. countercurrent B. facultative C. obligatory D. active E. nonessential