Which of the following is TRUE regarding mature red blood cells?
A) They are devoid of hemoglobin.
B) They are often sickle shaped.
C) Their red color indicates lack of oxygen.
D) They have no nucleus.
D) They have no nucleus.
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Which of the following makes new bone to replace older bone cells?
A) Marrow B) Osteoblasts C) Osteoclasts D) Periosteum
The sensor receptive cells in the retina that function best in dim light and do not perceive color is/are the:
A) iris. B) cones. C) pupil. D) rods.
A new patient is considered one who has NOT received professional services from the physician or another physician of the same specialty in the same group within the past:
A) 1 year. B) 2 years. C) 3 years. D) 5 years.
Which of the following is a nonprofit organization that is devoted to preventing medication errors and ensuring safe use of medication?
USP CDC DUE ISMP