Spermatids have only half as much genetic material as other body cells
Indicate whether the statement is true or false
TRUE
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Plasma makes up about ________ percent of a centrifuged sample of whole blood.
A. 55 B. 45 C. 25 D. 75 E. 35
Which of the following statements is true of the amount of horizontal force required to start an object sitting on a horizontal surface in motion?
A. it must be greater than the coefficient of kinetic friction B. it must be greater than the coefficient of static friction C. it must be greater than the maximum static friction force D. it must be greater than the maximum kinetic friction force
The first line of defense in the stomach against damaging acid and pepsin is the ________.
A. rapid rate of epithelial cell replacement B. release of gastrin C. adherent layer of mucus D. tight junctions of epithelial cells
The appearance of the signs and symptoms of AIDS in an HIV-infected individual generally appear after the virus has had enough time to replicate within host tissue cells and to cause death and destruction of cells critical to mounting a normal immune response.
Answer the following statement true (T) or false (F)