Somatic pain is associated with all of the following structures except ________
a. joints
b. tendons
c. skin
d. skeletal muscles
e. stomach
e
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What are the three factors that regulate blood pressure?
What will be an ideal response?
The basis of the membrane filter technique is that
A. bacteria are small enough to go right through the filter. B. the dilutions of the sample allow a total bacterial count when plated out using pour or spread plates. C. bacteria are larger than the holes in the filter. D. the membrane has an antibiotic that kills bacteria in the water.
The nematode Caenorhabditis elegans is important to human medicine because:
A. It causes elephantiasis, a disease of the lymph glands that causes the legs of humans to swell. B. It is an intestinal parasite in human digestive tracts. C. It has programmed cell death and therefore is useful in cancer and AIDS research. D. It causes an infection that produces severe anal itching. E. It is transmitted by mosquitoes and causes high fevers.
Chemical bonds that are formed when one atom with a partial positive charge (created from unequal sharing of
electrons) is electrically attracted to another atom with a partial negative charge (also created from unequal sharing of electrons) are called ____.
a. polar covalent bonds b. van der Waals forces c. ionic bonds d. hydrogen bonds e. nonpolar covalent bonds