Traditional medicines, which are used by the majority of people in less developed countries, are primarily derived from
A) animals.
B) rock.
C) water.
D) commercially purchased ingredients.
E) plants.
E
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Cholesterol can be used as an energy source for the body; where else can it be used?
a. within cell membranes to provide flexibility b. within ribosomes to assist in protein production c. within the nucleus to provide protection for the DNA d. within the nucleus to provide protection for the RNA
Which of the following is not true of
cladistics? a. It involves making hypothesis about the evolutionary relationship between clades. b. It is a precise science. c. It can lead to a cladogram. d. It may involve parsimony analysis. e. It may use outgroups to ‘root’ the tree
Mitotic cell division creates identical copies by replicating a cell's DNA __________ and then dividing ____________.
A. once twice B. twice, once C. twice, twice D. once, once E. None of the answers are correct.
What is the name of the molecule that binds to CAP to activate transcription of the lac operon?
A) lactose B) galactose C) glucose D) cAMP E) ATP