Which changes in the renal system are associated with increasing age of an individual? Select all that apply
1. Less excretion of glucose
2. High specific gravity of urine
3. Low levels of serum creatinine
4. High levels of blood urea nitrogen
5. Less excretion of water from the bloodstream
1, 4, 5
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Why are whole blood, bone marrow, and bronchoalveolar lavage specimens typically good specimens for flow cytometry?
A) The sizes of cells in these specimens fall within the range that can be analyzed by laser light scatter. B) The cell types in these specimens usually have more well-defined antigens. C) There is less debris in these specimens to non-specifically scatter light. D) These are generally cell suspensions with cells occurring separately and singly in the mixture.
Leukapheresis is a:
A) disease of the blood. B) lack of white blood cells. C) white blood cell. D) separation of white blood cells from the blood.
The number of times that the heart beats per minute is the
A) blood pressure. B) stroke volume. C) cardiac output. D) heart rate.
Identify the field that uses nature as a model for engineering, materials, and medical technology.
a. bio- robotics b. bioengineering c. biotechnology d. biomimetics