Can anyone me with this question asap ignore the answer that is already there i pressed it by an accident

Below are the three main organs that make up the plant body. what is the main function of the structure that is identified as b in the picture above? it anchors the plant.it produces food.it absorbs nutrients.it supports the plan

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

About __ of the mass of the cell is water