Spindle fibers
a. are composed of DNA.
b. only appear during interphase.
c. attach to the ends of chromosomes.
d. connect chromosomes to the center of the cell.
e. are used to organize and move chromosomes during mitosis.
E
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Surgical removal of the pancreas would
A. increase the acidity of the small intestine. B. prevent the production of chyme in the stomach. C. eliminate the ability to store bile in the gallbladder. D. block the secretion of bile. E. All of these changes would be a result of pancreas removal.
Chromosomes and genes are replicated during
a. anaphase. b. metaphase. c. interphase. d. prophase. e. telophase
If the Earth spun in the opposite direction what would change?
A) The equator would become as cold as the poles. B) Air masses in the Northern Hemisphere would rotate counterclockwise. C) Equatorial air would fall rather than rise. D) Winter would occur in July in the Northern Hemisphere.
The substance that is secreted by a bacterial pathogen is known as ___________.
A. exotoxin B. siderophores C. endotoxin D. chlamydia E. Coxiella