According to the AHDI, the dates in the sign-off block are usually:

Can someone i have no idea of how to do this.

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?

Does any one know what blood tastes like