Bryophytes (nonvascular plants) are a plant group characterized by lacking vascular tissues. They include the mosses, th..
The evolution of the species of the genus "Homo" led to the emergence of modern humans. Find out more about human evolut..
This tutorial looks at the adaptations of freshwater plants for them to thrive in still water habitats. Familiarize your..
Molecules move within the cell or from one cell to another through different strategies. Transport may be in the form of..
Plants are characterized by having alternation of generations in their life cycles. This tutorial is a review of plant m..
Different pregnancy and birth control and contraception strategies are described. Read this tutorial to learn each of th..