NEET BIOLOGY

ECOLOGY

ORGANISMS AND THE ENVIRONMENT

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Students observe ecological succession of a field that has been left bare. Which of the following are the students likely to observe first?
A
Growth of shrubs and trees
B
Formation of topsoil
C
A mature grassland community
D
Growth of grasses and weeds
Explanation: 

Detailed explanation-1: -The 5 stages of Ecological Succession in successive order are-Nudation, Invasion, Competition and Co-action, Reaction, and Climax or Stabilization.

Detailed explanation-2: -For example, after a forest fire that kills all the mature trees on a particular landscape, grasses might grow, followed by shrubs and a variety of tree species, until eventually the community that existed before the fire is present again.

Detailed explanation-3: -The main causes of ecological succession include the biotic and climatic factors that can destroy the populations of an area. Wind, fire, soil erosion and natural disasters include climatic factors.

Detailed explanation-4: -Which of the following is an example of one stage in ecological succession? A tree falls over in a forest.

There is 1 question to complete.