In a molecule with covalent bonding:
A. the atoms are held together by sharing electrons.
B. the ions are held together by the attraction of oppositely charged ions.
C. there are metals combined with nonmetals.
D. the atoms are held together by ions with the same charge.
Answer: A
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Simple diffusion involves:
A) drugs crossing membranes against their gradient from areas of low concentration to high concentration B) movement of molecules from areas of higher concentration to areas of lower concentration C) a certain carrier protein D) unevenly distributed electrical charges
The process where the dental implant becomes fused with the bone tissue through biologic bonding is called osseointegration
a. True b. False Indicate whether the statement is true or false
Extreme caution should be exercised when using which of the following for localized anesthesia of fingers, toes, or the penis, or in neonates?
a. bupivacaine b. epinephrine c. hyaluronidase d. mepivacaine
A 65-year-old man takes two medications for two separate disorders, and notices that the effects he experiences are greater when he takes both medications but less when he only takes one of the medications. This is an example of:
A. potentiation. B. habituation. C. tolerance. D. synergism.