Which statement is true about sperm?
A) It is unaffected by acid-base chemistry.
B) 98.6 degrees is an ideal temperature for sperm development.
C) Low pH environments can be harmful to sperm.
D) It is unaffected by temperature.
C
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The presence of ________ on cells allows your immune system to distinguish between cells that are naturally yours and cells that are not.
A. antigens B. antibodies C. B cells D. T cells
After a fracture of the diaphysis has healed, the thickened region that results is called the
A) epiphyseal plate. B) external callus. C) dense tuberosity. D) condyle. E) fracture facet.
Which of the following is not true of a hydrocele?
A) It can be distinguished from a hematocele by transillumination. B) It is typically associated with a direct inguinal hernia. C) It refers to excess fluid in a persistent processus vaginalis. D) It may be confined to the spermatic cord. E) It may be associated with inflammation of the epididymis.
What type of neural coding is involved when a quiet sound induces the stimulation of low threshold neurons which in turn induce the stimulation of high threshold fibers?
A) recruitment B) tetanic C) posttetanic D) facilitation