The normal rate of breathing is
inhalations and exhalations per minute.
a. 12 to 16.
b. 16 to 20.
18 to 22.
d. 20 to 24.
SPECIAL INSTRUCTIONS FOR EXERCISES 56 THROUGH 61. Match the structure of
the urogenital system in Column A to its description in Column B. Mark your answers in
the space provided.
___ 56. Kidney.
Eliminates urine to the outside of the body.
___ 57. Ureter.
Produces spermatozoa and male sex hormones.
___ 58. Bladder.
Produces ova and female sex hormones.
___ 59. Urethra.
___ 60. Testis.
Tubes which lead to the bladder.
___ 61. Ovary
Filters wastes from the bloodstream.
Under the proper conditions, a single cell is formed when a __________unites
with an ______________ . This single cell develops into a human being.
The endocrine system includes various _________ which secrete ___________
into the bloodstream.