Answer
Tracheids are the major cell type in gymnosperm wood. When tracheid tissues die, they are hollowed out. Vessel elements are cells that are lined up for the transport of fluids. These cells are more evolutionarily advanced than tracheids and create gaps that are wider.
Work Step by Step
Tracheids are the major cell type in gymnosperm wood. When tracheid tissues die, they are hollowed out. Vessel elements are cells that are lined up for the transport of fluids. These cells are more evolutionarily advanced than tracheids and create gaps that are wider.