servomechanism 1. A control system using negative feedback to operate another system. 2. A process that behaves as a self-regulatory device; e.g., the reaction of the pupil to light. Origin: L. Servus, servant, – G. Mechane, contrivance..
Different pregnancy and birth control and contraception strategies are described. Read this tutorial to learn each of th..
Animals adapt to their environment in aspects of anatomy, physiology, and behavior. This tutorial will help you understa..
Human consciousness and behavior are an interesting topic since they are determined and controlled by the brain. Conscio..
While learning and intelligence are associated with the functions of a conscious mind, sleep and dreams are activities o..
Plant cells have plastids essential in photosynthesis. They also have an additional layer called cell wall on their cell..
This tutorial elaborates on the effect of light on plant growth. It describes how different plants require different amo..
