The White Cliffs of Dover, a famous landmark in England, is made of limestone, which is really a collection of the pore-studded shells (tests) of  

A.  diatoms.
B.  dinoflagellates.
C.  brown algae.
D.  spirochetes.
E.  foraminifera.


E.  foraminifera.

Biology & Microbiology

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One reason plants often do not survive indoors is because they lack adequate amounts of:

A. water B. minerals C. light D. proper temperature E. All of these could be true

Biology & Microbiology

If a person had sensorineural deafness, why would a bone-vibrating hearing aid be useless?

What will be an ideal response?

Biology & Microbiology

Explain how a recessive trait can be the most frequent phenotype in a population

What will be an ideal response?

Biology & Microbiology

At the breakfast table, your roommate says, "Oops! I forgot to take my melatonin last night. I'd better take it now." How do you respond?

A. "Don't take it after a meal - it promotes the 'fight-or-flight' response, not 'rest-and-digest'." B. "Good idea - you don't want your bones to get brittle." C. "Don't take it now - it regulates biological rhythms, and is normally high at night and low during the day." D. "Be sure not to take too much, or your blood sugar could get dangerously low."

Biology & Microbiology