Answers

2014-06-01T16:29:38+05:30
Pond is a body of standing water ,either naturally or man made.
a ecosystem is a community of living organisms in conjunction with the nonliving components of the environment intracting as asystem
a food chain is a linear sequence of links in a food web
biomass is a biological material deriving from living or recently living organisms
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2014-06-04T20:43:32+05:30
1)POND ECOSYSTEM IS THE COMMUNITIES OF ORGANISMS THAT ARE DEPENDENT ON EACH OTHER INSIDE THE WATER.
2)A FOOD CHAIN IS A LINEAR SEQUENCE  OF LINKS IN A FOOD WEB.
3)A FOOD WEB DEPICTS FEEDING CONNECTIONS IN AN ECOLOGICAL COMMUNITY AND HENCE IT IS ALSO REFERRED TO AS A CONSUMER RESOURCE SYSTEM.
4)A HIERARCHY OF FOOD CHAINS WITH THE PRINCIPAL PREDATOR  AT THE TOP ;EACH LEVEL PREYS ON THE LEVEL BELOW .
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