Precancerous cervical cells can be detected by ____
a. routine Pap smears
b. self-examination
c. a series of blood tests
d. x-ray examinations
e. ultra-sound
ANSWER: a
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Gross primary productivity is the rate of photosynthesis minus the rate of plant respiration
____________________ Indicate whether the statement is true or false.
The use of microorganisms to produce useful products is known as
A) biotechnology. B) gene modification. C) genomics. D) recombinant DNA technology. E) cloning.
________ microbiology involves the use of microorganisms to make products such as antibiotics, vaccines, steroids, alcohols, vitamins, amino acids, and enzymes.
Fill in the blank(s) with the appropriate word(s).
The ________ law of thermodynamics states that physical and chemical processes occur in such a way that randomness (disorder) increases to a maximum.
A. fourth B. third C. first D. second