The use of chemical agents directly on exposed body surfaces to destroy or inhibit vegetative pathogens is ________.
A. sanitization
B. disinfection
C. antisepsis
D. sterilization
Answer: C
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Which muscles may contract during inspiration?
(a) external intercostals. (b) internal intercostals. (c) abdominal. (d) both b and c.
Estrogen is a lipid soluble hormone that can easily cross membranes. Knowing this, what can be concluded about estrogen receptors?
A. The receptors would be coupled to a G-protein. B. The receptors would be linked to enzymes that triggered a kinase cascade. C. The receptors would be found inside the cell. D. The receptors would be on the plasma membrane. E. The receptors would also be lipid soluble and able to cross membranes.
Communication and integration of responses between simultaneously occurring cell signaling pathways is called
____.
a. mutualistic responding b. effector coordination c. cross-talk d. amplification e. signal transduction
The major histocompatability complex is
A. also known as the complement system. B. a group of blood vessels that protects the nervous system. C. a set of genes that code for MHC cell receptors. D. located in the thymus gland. E. All of these choices are correct.