tissue extracts preparations made from animal tissues or organs; they usually contain many components, any one of which may be pharmacologically or physiologically active; extracts may contain specific, but uncharacterised factors or proteins with specific actions...
The cell is defined as the fundamental, functional unit of life. Some organisms are comprised of only one cell whereas o..
The circulatory system is key to the transport of vital biomolecules and nutrients throughout the body. Learn about the ..
Neurons generate electric signals that they pass along to the other neurons or target tissues. In this tutorial, you wil..
This tutorial deals with the abiotic factors of the freshwater environment that determine what sort of life would be sui..
Seed plants are vascular plants. They differ from the other vascular plants in producing seeds that germinate into a new..
The human body is capable of regulating growth and energy balance through various feedback mechanisms. Get to know the e..
