Mad cow disease is caused by
a. viruses.
b. proteins.
c. infectious bacteria.
d. parasites.
e. fungi.
B
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Microevolution can be said to have taken place when
a. a population experiences a shift in allele frequencies. b. a mutation occurs in a population. c. several mutations occur in a population. d. a feature of an individual animal changes through use or disuse. e. when a population has different forms of the same gene.
Which of the following is not one of the four most abundant elements in the body?
a. carbon b. hydrogen c. oxygen d. nitrogen e. calcium
The maduromycetes differ from other high G + C Gram-positives in that they contain the sugar madurose in cell extracts.
Answer the following statement true (T) or false (F)
All chemical reactions are, in theory, reversible
Indicate whether the statement is true or false