Tammy is using a treadmill, and when she puts her hands on the bars, sensors read her heart rate. today, the sensors are telling tammy that she's reaching 183, which is the highest rate and her target zone. what should she do to get the most effective workout?

Once she gets to 183, she should try and keep it there

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.

Hhhdhdns