Environmental Issues Class 12 : Human population explosion increases the demand for food, water , home , electricity , roads , automobiles etc. Pollution is any undesirable change in physical, chemical or biological characteristics of air, land, water or soil.
Biodiversity and Conservation Class 12 : The term biodiversity refers to the diversity of biological organisation ranging from cellular macromolecules to biomes. It was popularized by Edward Wilson.
Ecosystem Class 12 : An ecosystem is a functional unit of nature , where living organisms interact among themselves and also with the surrounding physical environment.
Organisms and Populations Class 12 : Ecology refers to the interactions among organisms and its physical or abiotic environment. Ecology is basically concerned with four levels of biological organisation. Organisms-populations-communities-biomes.
Biotechnology And Its Applications Class 12: Biotechnology has three critical research areas: Providing the best catalyst in the form of improved organisms usually a microbe or pure enzyme.
Biotechnology Principles and Processes Class 12 : Biotechnology deals with techniques of using live organisms or their enzymes for products and processes useful to humans.
Human Health and Disease Class 12 : Health is a state of complete physical, mental and social well being. It is affected by Genetic disorders, Infection from Microbes and life style of a person.
Strategies for Enhancement in Food Production Class 12 : Animal husbandry is the agricultural practice of breeding and raising livestock. It helps in increasing the food production along with plant breeding also. It involves caring and breeding of livestock such as buffaloes, cows, pigs, horses, cattle, sheep, camels, goats, bees silkworms etc. and also poultry
Microbes in Human Welfare Class 12 : Microbes are diverse protozoans bacteria fungi and microscopic plants and viruses viroid and also prions that are proteinaceous infectious agents.
