Cómo podría tu familia y tú manifestar su participación democrática en la sociedad y el colegio?​

20 the compound al(nh3)2 has atoms of nitrogen.

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?

Explain the causes and effect of damage to the genetic code.