Question

‘Y’ shaped energy model is given by-
A) H.T. Odum
B) E.P. Odum
C) Tansley
D) Both B and C

Answer 1

Hint: Y Shaped means the relation between the grazing food chain and detritus food chain. Name of the model is y shaped model because it looks like Y .

Complete Answer:
A) H.T.ODUM - Full name of H.T Odum is Howard Thomas Odum. He was an eminent ecologist. He is famous for his pioneering work on ecosystem ecology and his provocative laws of thermodynamics. The Y -shaped model was originally proposed by H.T. Odum in 1956. In 1983 his brother E.P.Odum gave a model of this relationship and called it the universal model of flow of energy.

B) E.P.ODUM- Full name of E.P.Odum is Eugene Pleasants Odum. He is famous for pioneering the concept of the ecosystem; the interdependence of divergent ecosystems as the basis of how the earth functions. It gave a model of relation with Y-shaped which is known as the universal model of flow of energy.

C) TANSLEY - Full name of Tansley is Arthur George Tansley. Early life of Tansley focused on palaeobotany and evolution. Later he became an eminent ecologist. The word ecology was coined by sir Arthur George Tansley. He describes ecology to recognize the integration of the biotic community and its physical environment as a fundamental unit of ecology.

D) Both B and C - Option B - E.P. Odum gives a universal model of flow of energy. And option C - Tansley coined the term Ecology.

So the answer is option -(A).

Note: Grazing food chain starts with producer and ends with top predator.
Detritus food chain starts with dead elements.