whats the name of the tube which utilizes rhythmic constriction and relaxation to bring food to the stomach

The negative change found inside the plasma membrane is created by potassium ions sodium ions hydrogen ions chlorine ions

Drag each tile to the correct box. arrange the phases of mitosis in the correct order. 1 (condensation of chromosomes) 2 (separation of chromosomes) 3 (formation of spindle fibers) 4 (alignment of chromosomes in the center of the cell) 5 (pinching of the cell membrane)

Which event would lead to primary succession of a forest?