In a food chain, the total amount of living material is depicted by
Pyramid of biomass
Pyramid of energy
Pyramid of number
Trophic levels
Which of the following is present in maximum amount in atmosphere
Match the following and select the correctoption.
$A.$ Earthworm | $(i)$ Pioneer species |
$B.$ Succession | $(ii)$ Detritivore |
$C.$ Ecosystem service | $(iii)$ Natality |
$D.$ Population growth | $(iv)$ Pollination |
What is true about the phosphorus cycle?
$I.$ Rocks are the natural reservoirs of phosphorus
$II.$ Weathering of sedimentary rocks makes phosphate available to the soil
$III.$ Herbivores and carnivores obtain phosphorus from plant directly or indirectly Choose the correct option
$A $ : In hydrosere, reed swamp stage is followed by floating plant stage.
$R$ : Sedge meadow stage has amphibious herbaceous plants.
Choose odd one out w.r.t. functional aspects of ecosystem.