In contrast, woody dicot stems develop an outer layer of dead thick-walled cells called cork cells, which together with the underlying phloem compose the bark of the tree.
The cells in these files expand vertically more than they do horizontally, and, accordingly, the stem develops as a cylinder.
I don't think anyone has put it better than Monty Don, who once wrote in the Observer: "The flower stem develops as a phallic joke before opening out into a huge funnel like the horn on a wind-up gramophone".
Initially white, the stem develops orange/violet spots and later brownish orange spots; in old specimens the stem may be brownish brick red.
However, how students' competencies in STEM developed were not measured in this study.
There was no solid evidence to show how well students' competencies in STEM developed during the two AR lessons.
In femoral revision, the use of a fluted, tapered stem developed by Wagner [4, 5] allowed successful treatment even in cases complicated by extensive proximal bone loss, thanks to adequate distal fixation.
The two MOOC AB experiments we report here cover two of the most important topics in MOOC research in Science, Technology, Engineering, and Math (STEM): developing effective pedagogies for teaching expert problem solving and learning from videos.
The flowers may be arranged (inflorescence) along the stem, developing from the base, or as a single flower at the tip of the stem, or as a cluster of flowers.
In this case, the patient's BRAFV600E ganglioglioma of the brain stem developed resistance to vemurafenib following 11 mo of therapy.
