Answers

2014-10-03T09:58:25+05:30
FOOD CHAIN - Series of organisms feeding on one another at various level forms a food chain.                       or
The sequence of living organism in which one organism eats another is called a Foodchain .
                 Each step of level of food chain forms a trophic level .


BIOTIC FACTOR Biotic components of the ecosystem refer to any living component and their interactions. 
Example --- soil ,topography ,moisture , etc .


ABIOTIC FACTOR Abiotic component are those which refer to any non living component in the ecosystem. 
Example--- sunlight ,oxygen ,temperature,etc.


ECOSYSTEM -An ecosystem includes all of the living things (plants, animals and organisms) in a given area, interacting with each other, and also with their non-living environments (weather, earth, sun, soil, climate, atmosphere). 
2 5 2
2014-10-03T14:05:42+05:30
Biotic Biotic refers to the living organisms. Abiotic Abiotic refers to the non living organisms Ecosystem The interconnection between living organisms , plants and animals is known as ecosystem.
1 4 1