The phosphorus rich fertilizer obtained from sea birds along the coast of Chile and Peru, is

Which one has the maximum biomass

Cycling of elements in an ecosystem is called

The changes that occur in successive seral stages to reach a climax community are

$I.$ changes in the diversity of species of organisms

$II.$increase in the number of species and organisms

$III.$ increase in the total biomass

Choose the correct option

Temperate evergreen forests are found in

Plants like Rhizophora and Avecennia grow on the sea shores under saline condition. For this they have special roots for respiration which are called