A dichotomous key is used to?

A dichotomous key is used to ___________________.

a) locate organisms
b) identify organisms
c) divide organisms
d) interbreed species
e) describe plants

45. The control in an experiment _______________________________________.

a) reduces the experimental errors
b) minimizes experimental inaccuracy
c) allows standard comparison for the experimental group
d) is an additional replicate for statistical purposes
e) makes the experiment invalid

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