Which of the following components is never found in a virus particle?
a. protein
b. DNA
c. RNA
d. ribosomes
d
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Which of the following statements is correct?
A. Global warming is the same as global climate change. B. Global climate change includes changes in patterns of rainfall, but not in patterns of temperature. C. Global climate change includes global warming, but also increased fires, changes habitats, and changes patterns of temperature and rainfall. D. Global climate change has no effects of human populations.
The predominant organism in vaginal secretions from normal women of reproductive age is:
a. lactobacilli. b. Streptococcus agalactiae. c. Enterobacteriaceae. d. staphylococci.
Which molecules coat the inside of the cytosolic membrane to help form endocytic vesicles?
a. clathrins b. cholesterols c. antibodies d. aquaporins e. microtubules
Halophytic plants have adapted to the constantly changing salinity in _______ by developing filters in their roots that remove salts.
a. coral reefs b. rivers and streams c. lakes and ponds d. estuaries