Ecosystem Test ...

Identify the incorrect statement for the following.

Gross primary productivity of an ecosystem is 170 tons of organic matted and amount used in respiration is 50 tons. Calculate the net primary productivity of the ecosystem.

All of the following statements are true for ecological pyramid except

Number of individuals decreases from producer level to consumer level in

In plant succession, the net productivity of climax community

Highest value in g C m$$^{−2}$$ yr$$^{−1}$$ of a grassland ecosystem  would be

Which of the following statements about productivity is true?

Source of maximum sulphur is/reservoir of sulphur is

Read the following statements regarding ecological pyramids and choose the correct answer.
(a) Relationship between organisms at different trophic levels is expressed in terms of number, biomass and energy.
(b) Any calculations of energy content, biomass or number has to include one group of organisms at that trophic level.
(c) In most ecosystems, all the pyramids of number, biomass and energy are upright.
(d) The pyramid of biomass in sea is generally inverted.
(e) Pyramid of energy is always inverted and can never be upright.

Which of the following is the correct trend of succession in hydroseric succession?