Answer:
They have helical thickening of lignin in their walls to prevent collapse
Explanation:
the primary function of Xylem and its conducting vessels tracheids is to provide support and tranport water and minerals in plants.
Xylem vessels have layers of dead materials in the walls called LIGNIN. Lignin is a polymer; a very strong, hard materials that stop water passage through it,because it contains dead cells,
Therefore the presence of deposit of these strong impermeable, ligified walls in its walls prevent its collapse during mass flow of water of transpiration pull.
<span>A. can start in many different places on a sequence at the same time. </span>
Considering that most soups are warm and salty The answer is B. The combination of organic compounds in warm salty water.
Answer: yup. That, and water or air.
Explanation:
C. Any form of writing that expresses ideas in and imaginative way may be fictional or non-fictional it may be prose or poetry
