Biology, 07.10.2019 05:20 tanabugg

In science, a theory is an explanation for some phenomenon that is based on
observation, experimentation, and reasoning. one important theory in biology is the
cell theory. what kinds of observations led to the development of the cell theory?
a. testing of first vaccines
b. discoveries of fossil bacteria
c. isolations of dna and rna
d. microscopic views of plants and animals

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