A SERIES OF ORGANSIMS FEEDING ON ONE ANOTHER AT VARIOUS BIOTIC LEVELS IS CALLED FOOD CHAIN
GARDEN IS AN ARTIFICIAL ECOSYSTEM
VARIOUS LEVELS IN A FOOD CHAIN WHERE TRANSFER OF FOOD TAKES PLACE IS CALLED TROPIC LEVELS
DECOMPOSERS RECYCLE DEAD MATTER BY USING IT AS SOURCE OF FOOD
ENERGY FLOW IN THE BIOSPHERE IS UNIDIRECTIONAL
BIOGEOCHEMICAL CYCLES ARE ALSO KNOW AS NUTRIENT CYCLES
SUBSTANCES THAT CAN BE BROKEN DOWN INTO SIMPLER SUBSTANCES BY THE ACTION OF MICROORGANISMS ARE CALLED BIODEGRADABLE SUBSTANCES
SUBSTANCES THAT CANNOT BE BROKEN DOWN INTO SIMPLER SUBSTANCES BY BIOLOGICAL PROCESSES IS CALLED NON-BIODEGRADABLE SUBSTANCES
ENZYMES ARE SPECIFIC IN THEIR ACTION
MICROORGANSIMS HAVE THE ENZYMES TO BREAKDOWN ANIMAL AND PLANT PRODUCTS
BUT DO NOT HAVE THE ENZYME TO BREAKDOWN PLASTICS, GLASS CANS
BIODEGRADABLE SUBSTANCES AFFECT THE ENVIRONMENT IN 2 WAYS : HARMFUL AND USEFUL WAYS
BIODEGRADABLE WASTES ARE HARMFUL: BIODEGRADABLE SUBSTANCES ARE HARMFUL WHEN THEY ARE ACCUMULATED IN LARGEAMOUNTS AND ARE NOTDEGRADED AT THE RIGHT TIME. THESE CAN BE BREEDING GROUNDS FOR INSECTS SUCH AS MOSQUITOES WHICH CAN CAUSE HARMFUL DISEASES
BIODEGRADABLE SUBSTANCES ARE USEFUL: DECOMPOSERS BREAKDOWN COMPLEXORGANICMOLECULES PRESENT IN DECAYING MATTER INTO SIMPLER SUBSTANCES AND LIBERATE P,O,N,C INTO THE BIOSPHERE WHICH ARE RECYCLED AGAIN.
NON-BIODEGRADABLE SUBSTANCES CAN ONLY CAUSE HARMFUL EFFECTS
PLASTICS ARE NON-BIODEGRADABLE SUBSTANCES THAT CANNOT BE DIGESTED BY ANY KIND OF DECOMPOSERS
NON BIODEGRADABLE SUBSTANCES CANNOT BE DECOMPOSED AND MAY PASS ALONG THE FOOD CHAIN FROM CROPS TO OTHER ORGANISMS
NON BIODEGRADABLE SUBSTANCES ARE TOXIC AND CAN POLUTE SOIL, LAND AND WATERBODIES
ALL THE INTERACTING ORGANISMS IN AN AREA TOGETHER WITH NON-LIVING CONSTITUENTS IN THE ENVIRONMENT FORMS AN ECOSYSTEM
ECOSYSTEM CONSISTS OF 2 COMPONENTS
THE 2 COMPONENTS ARE BIOTIC AND ABIOTIC
BIOTIC COMPONENTS OF THE ECOSYSTEM: PRODUCERS, CONSUMERS AND DECOMPOSERS