Biodiversity is the variety of life (genetic, species and ecosystem levels) on Earth or some part of it. It includes all living forms, plants, animals and micro-organisms. It is the natural wealth of a region that provides resources and ecological services.
Biological Oceanography is a branch of oceanography that studies living organisms (ie, the biota) in the sea in relation to their environments.
Microbiology is the science that studies micro-organisms and viruses.
Immunology is a branch of MEDICINE that studies the body's ability to defend itself from foreign substances, cells and tissues, especially DISEASE-causing organisms, and seeks means of controlling that ability.
Biochemistry, encompasses the study of the chemical nature of living material and of the chemical transformations that occur within it.
Biological studies of individuals and groups of organisms can occur at various levels (eg, molecular, cellular, anatomical, functional, behavioural, ecological and evolutionary).
Successful actions to protect the ENVIRONMENT and conserve natural RESOURCES constitute environmental management.