(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...
In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..
Illusions are the perceptions and sensory data obtained from situations in which human error prevents us from seeing the..
This tutorial elucidates body temperature regulation. Know the details here to learn how the body sets the body temperat..
Multicellular organisms evolved. The first ones were likely in the form of sponges. Multicellularity led to the evolutio..
The cell is defined as the fundamental, functional unit of life. Some organisms are comprised of only one cell whereas o..
Bryophytes (nonvascular plants) are a plant group characterized by lacking vascular tissues. They include the mosses, th..
