Mature erythrocytes
A. have a centrally located nucleus.
B. are actually just cellular fragments.
C. contain hemoglobin in their cytoplasm.
D. mature from cells called megakaryocytes.
E. do not contain protein.
C
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The occipital ________ are where the occipital bone articulates with the first cervical vertebra
A) processes B) condyles C) foramina D) fossae E) tubercles
In the diagram, individual muscle fibers are covered by this layer
a) K b) I c) L d) M e) A
Which of the following is NOT true about enzymes?
A. Very few enzymes require cofactors for activation. B. Most enzymes are not sensitive to changes in pH. C. As the temperature increases from 25°C to 37°C, enzyme activity decreases. D. All of the choices are correct.
The working distance for a 10× objective lens is ________.
Fill in the blank(s) with the appropriate word(s).