Plants, like animals, produce hormones to regulate plant activities, including growth. They need these hormones to respo..
This tutorial recognizes the importance of food as a source of energy that will fuel many biological processes. A good d..
In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..
Dinosaurs represented a major turn in the evolutionary development of organisms on Earth. The first dinosaurs were presu..
This study guide tackles plant roots in greater detail. It delves into the development of plant roots, the root structur..
Nutrients in the soil are essential to the proper growth of a land plant. This tutorial deals with the properties of soi..