work
(Science: chemistry) energy transferred by mechanical means, force acting over a distance. For chemical systems the sign for work is positive, if work is done on the system and negative, if work is done by the system. An example is the expansion of a gas against the external, atmospheric pressure. In this case work is negative, because it is done by the gas which represents the system.
The human body is capable of regulating growth and energy balance through various feedback mechanisms. Get to know the events of absorptive and post-absorptive states. This tutorial also describes the endocrine and neural control of compounds such as insulin and glucagon. It also deals with the regulation of growth, heat loss, and heat gain. ..
One of Mendel’s law of inheritance is the “law of dominance”. Read this tutorial to know more about this form of inheritance...
Homeostasis is essential to maintain conditions within the tolerable limits. Otherwise, the body will fail to function properly. The body does this through feedback control mechanisms, e.g. blood sugar level regulation and temperature regulation. Read this tutorial to know more about the principles of negative feedback control employed by the body to sustain homeostasis...
Genes are the blueprint of our bodies, a blueprint that creates a variety of proteins essential to any organism's survival. Find out in this lesson the various factors that affect growth. ..
This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read this tutorial to know more details in each of these meiotic events and how they promote genetic diversity in sexually-reproducing organisms...
Mātauranga Māori is the living knowledge system of the indigenous people of New Zealand, including the relationships that Māori have with the environment. This lesson uses the Toheroa Abundance Project as an example of how Mātauranga Māori is influencing ecological outcomes. The lesson is designed to showcase the value of indigenous cultural perspectives and knowledge of the world around us. ..
