how does a tree develop its trunk
Answers
Answer:
Trunks. ... The tree trunk has to lengthen and expand as the tree grows in its search for moisture and sunlight. A tree's diameter growth is done via cell divisions in the cambium layer of the bark. The cambium is comprised of growth tissue cells and found just under the bark.
Answer:
cell divisions in the cambium layer of the bark
Explanation:
A tree's trunk is critical for limb support and root-to-leaf nutrient and moisture transport. The tree trunk has to lengthen and expand as the tree grows in its search for moisture and sunlight. A tree's diameter growth is done via cell divisions in the cambium layer of the bark. The cambium is comprised of growth tissue cells and found just under the bark.
Xylem and phloem cells are formed on both sides of the cambium and continually adding a new layer each year. These visible layers are called annual rings. Cells to the inside make up the xylem which conducts water and nutrients. In xylem cells the fibers provide strength in the form of wood; the vessels allow water and nutrient flow to the leaves. Cells to the outside make up the phloem, which transports sugars, amino acids, vitamins, hormones, and stored food.