Physiology is the study of how living organisms function. Thus, human physiology deals specifically with the physiologic..
The sequence of amino acids determines the type of protein. Protein is synthesized according to the sequence of nucleoti..
Earth was created around 4.5 billion years ago and life began not long after. Primitive life likely possessed the elemen..
This tutorial elaborates on the physical development of humans, particularly from puberty to adulthood. Read this tutori..
This tutorial digs into the past to investigate the origins of life. The section is split into geological periods in the..
The Earth's ecosphere was rapidly changing and throwing up a wide range of ecological niches that new adaptive organisms..