Words are made up of roots, bases, stems, derivational endings, inflectional endings, and occasionally clitics. Not everyone agrees on these forms or on the names of them. This includes Katamba. If we ...

In the center of the root meristem, a small group of cells called the quiescent center (blue) are surrounded by stem cells (red), whose descendants continue to divide for a while before ...

it was possible to show that small groups of stem cells function as a long-term source of new cells to build up the shoot and the root. However, the experiments described above also revealed that ...

However, you may notice that your Christmas cactus is producing roots on its stems, and you might begin to fear you've done something wrong. Are these roots normal? What should you do? Is sugar ...