(Science: botany) a change in the character of a cell wall, by which it becomes harder. It is supposed to be due to an incrustation of lignin. Origin: cf. F. Lignification. See lignify. The depositing of lignin in cell walls by plants that creates wood...
Explore why New Zealand has such unique flora and fauna, and learn why long periods of geographical isolation. This less..
Gregor Mendel's studies into Monohybrid and Dihybrid crossing and Charles Darwin's study of evolution and natural select..
Seed plants are vascular plants. They differ from the other vascular plants in producing seeds that germinate into a new..
This tutorial deals with the abiotic factors of the freshwater environment that determine what sort of life would be sui..
In this tutorial, the works of Carl Gustav Jung and Sigmund Freud are described. Both of them actively pursued the way h..
Plant organs are comprised of tissues working together for a common function. The different types of plant tissues are m..
