Auxin is produced a. in the root meristems c. by ripening fruit b. in the apical meristems d. in response to shorter days

c-reactive protein (crp) is an acute phase protein belonging to pentraxin family of proteins, whose levels increases 1000-fold or more in concentration in blood during the occurrence of an injury, inflammation or tissue death.

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link: