Answer:
is there an image so we can see which part you are talking about?
The conductive tissues of the angiosperms are the xylem which drives the raw sap and the phloem which conducts the elaborate sap.The phloem, or liber, drives the elaborate sap, solution of organic substances rich in carbohydrates, from the leaves to the other organs.
The elaborate sap (which contains organic substances produces by photosynthesis) is produced in the leaves, where the majority of the chlorophyll subsist, so if the leave die off, the production of organic substances and the elaborate sap are reduced, so its transport by the phloem will be reduced, and this is how the phloem will be affected by the dying of the leaves.
I think the Atrial fibrillation is the uncoordinated beating of the atria rapid. These are rhythm in which all the atrial activity is depicted as chaotic undulations of the base line. Atrial rhythms include; atrial fibrillation, atrial flutter, premature atrial contraction, wandering pacemaker. Atrial fibrillation can cause an increased risk of stroke, heart failure and other heart related complications.
