Homeostasis is the relatively stable conditions of the internal environment that result from compensatory regulatory res..
Ferns and their relatives are vascular plants, meaning they have xylem and phloem tissues. Because of the presence of va..
Regulation of Biological Systems tutorials are focused on the modulation of biological systems from cell to population l..
Lentic or still water communities can vary greatly in appearance -- from a small temporary puddle to a large lake. The s..
In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..