Why is it important for a species to reproduce? what would happen if a particular species stopped reproducing?

Chlorophyll is found in plant leaves and absorbs light from the sun to enable plants to perform photosynthesis. magnesium is an important component of chlorophyll. the concentration of magnesium ions is higher in the root-hair cells of plants than in the soil. which mechanism of ion uptake would best enable a plant to produce a steady supply of chlorophyll? osmosis diffusion passive transport active transport

If you have a difficult time knowing where your hand is without looking at it you may be having a problem with your what ?

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