Bryophytes (nonvascular plants) are a plant group characterized by lacking vascular tissues. They include the mosses, th..
Learn about community patterns and the ecological factors influencing these patterns. Revisit some of the ecosystems you..
Planktons are microscopic organisms that live suspended in aquatic habitats. There are two groups: the phytoplanktons an..
Hormones are essential in the regulation of the activity of the various biological systems of the human body. The ineffi..
There are more species of insects than any other species combined. This surely illustrates that insects have the selecti..
This tutorial deals with the structure and function of flowers, fruits, and seeds. Also included here are the types of f..
