How are the earth's principal biological systems being depleted?

Mention a complex that is present in biological systems and in medicine.

Total energy present in a biological system is called

Total energy present in a biological system is called

The most common cations in biological systems are :

Assertion:Besides macroscopic plants and animals, microbes are the major components of biological systems on this earth. Reason: Microbes causea large number of diseases in humans, plants and animals.

Name the principal element in the solar system.

List the functions of lipids in a biological system.