In the grassland, trees do not replace the grasses as a part of an ecological succession because of ____________.
Which of the following does not possess the ability to do work not because of motion?
(a) a sparrow flying in the sky
(b) a sparrow moving slowly on the ground
(c) a sparrow in the nest on a tree
(d) a squirrel going up a tree
Match column I with column II and select the correct option.
How is the biomass of a community affected as it progresses from one seral stage to the next during ecological succession?
Draw a figure showing two animals, two birds and a few trees as a part of a forest.