Physiology is the study of how living organisms function. Thus, human physiology deals specifically with the physiologic..
Plants are responsible for incredible feats of molecular transformation. Plant processes, such as photosynthesis, photop..
Different pregnancy and birth control and contraception strategies are described. Read this tutorial to learn each of th..
Multicellular organisms evolved. The first ones were likely in the form of sponges. Multicellularity led to the evolutio..
Leaves are the major photosynthetic organ of a plant. Apart from that, they are also crucial to water movement. In this ..
The circulatory system is key to the transport of vital biomolecules and nutrients throughout the body. Learn about the ..