Which of the following is (are) risk factor(s) for
developing prostate cancer?
a. advancing age
b. heredity
c. tobacco smoking
d. a high-fat diet
e. all of these
Answer: e
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. It’s Friday afternoon, which means it’s time to clean out the shared fridge in the break room. Besides the usual assortment of half-eaten sandwiches and stale diet cola, you discover a moldy orange in a drawer that looks like it’s been there forever. Next to it you find a scribbled note that turns out to be a limerick: My lunch last week was ricotta With a couple of oranges and a soda But yesterday my sweet oranges Sprouted fuzzy black sporanges And now all I’ve got is Deuteromycota Chuckling to yourself, you can’t help but notice that the poet is using outdated and inaccurate terminology. Assuming that the orange is covered in bread mold (Rhizopus stolonifer), to which phylum does it belong?
a. Chytridiomycota b. Basidiomycota c. Zygomycota d. Ascomycota
A J-shaped growth curve is converted to an S-shaped one:
a. when the parents are past reproductive age b. if the data are plotted in reverse c. when the carrying capacity is reached d. if reproduction stops e. only for fast-growing populations such as bacteria
Which statement is not true?
1.Carbon dioxide is more soluble in fluid than in oxygen. 2.Carbon dioxide diffuses more rapidly across the respiratory surface than oxygen does. 3.The major muscle involved in breathing is the diaphragm. 4.Oxygen is carried primarily by blood plasma. 5.Carbon dioxide is carried by the blood plasma.
Which one of the following types of junctions in an epithelium allows the tissue to stretch and bend, as in the epithelium of the skin?
A) tight junction B) adhesion junction C) glandular junction D) stratified junction E) gap junction