Ecosystem Test ...

Which one of the following pairs is a sedimentary type of biogeochemical cycle __________.

Natural reservoir of phosphorus is :

Which one of the following element is the critical limiting factor in the function of ecosphere because of its irretrievable loss into the ocean ______________.

A long term global cycle which is linked by water and in
which sea floor rising play an important role is

The second stage of hydrosere is occupied by plants like

Biogeochemical cycle with gaseous phase is

Choose the ecological pyramids which is/are always upright?
I. Pyramid of numbers
II. Pyramid of biomass
III. Pyramid of energy

The following ecological pyramids represent the number of organisms involved in feeding relationships.

Choose the LETTER (A, B, C or D) which is most likely to represent the organisms in each of the figures.

The following ecological pyramids represent the number of organisms involved in feeding relationships.

Choose the LETTER (A, B, C or D) which is most likely to represent the organisms in each of the figures.

Biotic component of biosphere is not constituted of