Which STD causes warts on the genitals and can lead to cervical and anal cancers?
a. gonorrhea
b. syphilis
c. chlamydia
d. genital herpes
e. HPV infection
ANSWER: e
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Why is one side of a single water molecule partially negative while the other side is partially positive?
A. Electron pairs are unevenly shared between the oxygen atom and the two hydrogen atoms. B. Electron pairs are unevenly shared between the two hydrogen atoms. C. Hydrogen donates its electrons to oxygen. D. Oxygen donates its electrons to hydrogen.
Growth of long bones
a. follows the cartilage model. b. occurs at both ends first, then in the middle. c. is characterized by calcified cartilage replacing bone tissue. d. is characterized by the absence of cartilage at both ends of the shaft. e. is also called bone remodeling.
Which is the predominant second messenger involved in regulating glucose metabolism?
a. insulin b. glucagon c. adenyl cyclase d. cyclic AMP e. G protein
The movement of water through a semipermeable membrane from a region of lower solute concentration to a region of higher solute concentration is called ________.
a) solubility b) osmosis c) metabolism d) denaturation e) diffusion