The centrioles are important for producing the fibers that move the chromosomes during cell division
a. true
b. false
Ans: a. true
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Interferon released from virus-infected cells binds with other uninvaded host cells and induces these cells to produce inactive enzymes capable of blocking viral replication
a. True b. False Indicate whether the statement is true or false
The phospholipid bilayer in plasma membranes is arranged
1.with the polar heads on the internal and external surfaces.
2.with the polar heads on the internal surfaces only.
3.with the polar heads on the external surfaces only.
4.with the polar heads in the center.
5.with the polar heads distributed randomly.
An atom with 5 protons, 5 neutrons, and 6 electrons would have a net charge of ________.
A. +1 B. +2 C. -2 D. -1
Which of the following is most inferior in location?
A. pelvic cavity B. mediastinum C. diaphragm D. pleural cavity E. pericardial cavity