The pyramid of number in a grassland ecosystem is
Always erect
Always inverted
Either erect or inverted
Irregular
(a)In a grassland food chain the number of individuals decrease at the successive higher levels.
Which of the following ecological pyramids is most representative of functional characteristics of an ecosystem?
The pyramid of energy in a forest ecosystem is
Define ecological pyramids and describe with examples, pyramids of number and biomass.
Select the correct option w.r.t. Age pyramids.
The most common shape of pyramid of number is
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