What chemical stimulates the gallbladder to send bile into the small intestine?

Which animal group is the largest and contains more species from all the other living groups combined? is it mammals or

Based on the topographic map of mt. st. helens, what is the contour interval of the volcano about height is 2,950 m?

Which of these is true for bacteria because they are prokaryotic cells? a. they can engulf body cells in order to make memory cells. b. they must invade viruses in order to reproduce. c. they are much larger than eukaryotic body cells. d. they can reproduce on their own outside of other cells.