Physiology is the study of how living organisms function. Thus, human physiology deals specifically with the physiologic..
This tutorial looks at sex determination via the sex chromosomes, X and Y. Read it to get more info on X and Y chromosom..
Control of Growth & Development tutorials look at how the genetic makeup determines the biological processes on a da..
Nutrients in the soil are essential to the proper growth of a land plant. This tutorial deals with the properties of soi..
This tutorial looks at the relationship between organisms. It also explores how energy is passed on in the food chain an..
Adaptation, in biology and ecology, refers to the process or trait through which organisms or the populations in a habit..