Mammals are a diverse group of organisms, where most of them develop their offspring within the uterus of the mother. Over time, mammals have diversified into the placentals and the marsupials. Get a better understanding of how the mammals became dominant based on natural selection and geological events as elucidated in this tutorial...
The water cycle (also referred to as the hydrological cycle) is a system of continuous transfer of water from the air, sea land, and water in a cycle. This tutorial explains in brief what occurs in the water cycle. Also, it delineates what is groundwater and surface run-off. This is an essential background as to how the water moves in an ecosystem both geologically and biologically...
In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells differentiate and become specialized in relation to the function they will perform. Learn more about plant meristems in this tutorial...
This study guide tackles plant roots in greater detail. It delves into the development of plant roots, the root structure, and the major regions of a plant root. It also talks about the different forms of roots that have specialized functions. ..
Leaves are the major photosynthetic organ of a plant. Apart from that, they are also crucial to water movement. In this tutorial, various plant processes are considered in more detail. It also includes topics on leaf arrangements, leaf types, leaf structure, leaf color, abscission, and importance to humans...
The movement of molecules (specifically, water and solutes) is vital to the understanding of plant processes. This tutorial will be more or less a quick review of the various principles of water motion in reference to plants. ..