Embibe Experts Solutions for Chapter: Ecosystem, Exercise 1: AP EAPCET Medical 2018 (22-Apr Shift-1)

Who proposed that ecosystem is the symbol of structure and function of nature?

Study the following statements and select the correct ones:
I) In a thermally stratified lake, in winter, the upper layer is known as epilimnion.
II) Animals in a lake that are capable of swimming constitute neuston.
III) The natural interconnections of food chain forms a network called food web.
IV) Energy flow in an ecosystem is unidirectional.

Biological equilibrium is found among the:

The tropic relationship is expressed in terms of numbers: biomass or energy arranged one on the top of its lower tropic level, resulting in a pyramidal shape. In case of a parasitic food chain. the pyramid number is _________

Choose the correct statements related to ecological pyramids?
(i) The trophic relationship is expressed in terms of numbers, biomass or energy arranged one on the top of its lower trophic level, resulting in a pyramid shape.
(ii) The base of each pyramid represents producers, while the apex represents the top order consumers.
(iii) The pyramid of biomass in sea is generally upright.
(iv) In the case of parasite food chain, the pyramid of number is inverted.
(v) Some species belonging to two or more trophic levels is not limitation of ecological pyramid.

Biogeochemical cycle having a small gaseous component is found in ___.