Short cylinders with a 9 + 0 pattern that form the spindle apparatus during cell division are
A. flagella.
B. centrioles.
C. basal bodies.
D. actin filaments.
Answer: B
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Chlorine atoms have seven electrons in the outermost shell. As a result, one would expect chlorine to form ions with a charge of
A) +1. B) +2. C) 0. D) -2. E) -1.
The eye measures about ________ in diameter
A. 2.5 mm B. 12.5 mm C. 2.5 cm D. 12.5 cm E. 22.5 cm
Pernicious anemia is caused by the bone marrow failing to produce enough RBCs, even though all ingredients needed for erythropoiesis are available
a. True b. False Indicate whether the statement is true or false
The type of gland that secretes sweat into a hair follicle that is found in the axillary, anal, and genital regions is the ________ sweat gland.
A. apocrine B. sebaceous C. merocrine D. ceruminous