Which set of characteristics are common for facial hair? * 1 point
Coarse, sharpened tips, possibly two medulla
Significant variance in diameter, and significant buckling.
Large variation in color, softer texture compared to other hair types.
Narrow diameter, sharp saber-like tips

Ivan is looking at a cross section of a stem taken from a vascular plant. he sees two different types of vascular tissue: the xylem, which is closer to the center of the stem, and the phloem, located around the xylem, closer to the outside of the stem. how do these two structures work together in a living plant?