As a result, the functions of these tissues vary. some tissues, such as tissue, are rigid and provide support. other tissue types, such as tissue, are flexible and delicate and are better suited for binding organs or creating membranes around organs

Asample of digestive juice was removed from the stomach of a pig. the juice was placed in a test tube along with some grains of wheat. a second test tube was set up containing an equal number of wheat grains, with distilled water rather than digestive juice. the test tubes were kept for 8 hours at 40 degrees c. after 8 hours, the grains inside the digestive juice had broken into tiny particles. the grains of wheat, in the water, were wet but otherwise unchanged. what is the control group?