1. En la especie humana el poder plegar la lengua depende de un gen dominante (L), el gen que determina no poder hacerlo (lengua recta) es recesivo (I). Sabiendo que, Juan puede plegar la
lengua, mientras que Ana no puede hacerlo y el padre de Juan, tampoco ¿Qué probabilidades
tienen Juan y Ana de tener un hijo que pueda plegar la lengua? Elabora un cuadro de Punnett

By water evaporation from the leaves is created a negative pressure at the top of the tree that promotes the ascension  of the water through channels that are called xylem. there are also two molecule forces that are involved: the intra-water molecules cohesion (water molecules stick to each other) and the adhesion when the water molecules stick to the channels they are running in. this is what enables water to go from the roots to the top of a tall tree.