A Massachusetts General Hospital (MGH) research team investigating how the earliest stages of life might have developed has discovered a way the first living cells could have met a key challenge -- ...

Homeostasis is the maintenance of a constant internal environment to keep conditions at an optimum. The nervous system and hormones are responsible for this. Hormones close hormoneChemical messenger ...

Animals occupy diverse types of biomes and aquatic environments. A key factor in their success is the ability for many species to adapt to external environmental fluctuations and maintain a consistent ...

Health is the state of physical, mental and social well-being. It is not just being free from disease. Communicable diseases can be transferred from one person to another, whilst non-communicable ...