The functional group shown above is ____
a. a carbonyl group
b. a hydroxyl group
c. a phosphate group
d. an amino group
e. a carboxyl group
B
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The original source of genetic variation that serves as the raw material for natural selection is ________
A) mutation B) gene flow C) geographic isolation D) random fertilization
You've been asked to stabilize a compound whose general state is altered by excess electrons. The element you would add to the compound to most effectively stabilize the compound would be? Why?
A. oxygen, because it can easily bind with the compound B. carbon, because it is capable of neutralizing electrons C. nitrogen, because it have five electrons on its outer shell D. fluorine, because it is has seven electrons in its outer shell
A urease test is used to identify Mycobacterium tuberculosis because
A) urease is a sign of tuberculosis.
B) M. tuberculosis produces urease.
C) urea accumulates during tuberculosis.
D) some bacteria reduce nitrate ion.
E) M. bovis can cause tuberculosis.
Microbiologists study a variety of organisms, but all are considered members of either Bacteria or Archaea
a. true b. false