Humans incorporate nitrogen into their bodies
a. by nitrification.
b. through ammonification.
c. by assimilation and biosynthesis.
d. via denitrification.
e. by the process of decomposition.
C
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What is one concern with the use of genetically-engineered, herbicide-tolerant crops?
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During the 1968 Olympic Games, the International Olympic Committee performed an analysis of ____ on all female athletes in order to verify their sex
a. Barr bodies b. hormone levels c. karyotypes d. genitalia e. phenotypes
A hypothetical condition in some domesticated fowl is identified phenotypically by patchy loss of feathers on the animals' backs
Although several factors, genetic and environmental, are found to be involved, only about 3% of any population with any of these factors are found with feather loss. Which of the following is a likely cause? A) continuous variation B) threshold of liability C) low mutation frequency D) high number of alleles in one of the genes E) high number of environmental effects
What is the metabolic abnormality that underlies the characteristic symptoms of diabetes mellitus?
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