<h2>dont know what your asking?</h2><h2></h2><h2></h2><h2></h2>
Xylem tissue helps in the transport of water and minerals. Phloem tissue helps in the transport of food. Transport in xylem requires physical forces such as transpiration pull. Transport of food in phloem requires energy in the form of ATP.
Frederick Miescher first identified DNA.
DNA provides the instructions for protein production.
hope this helps