Which of the following structures function in holding organelles in place, maintaining cell shape and rigidity, and directing organelle movement?

List two modern organisms that have pentameral symmetry

Which statement best describes how the loudness of the sound affects the high-pressure region created by the sound wave? a. a louder sound has no effect on the pressure created. b. a louder sound means a high-pressure region that is higher. c. a louder sound means a high-pressure region that is not as high.

Witch theory suggests all living things are made up of cell or cells