Pick out the correct option from (a) to (e).
A. Primary succession begins in areas where natural communities have been destroyed.
B. Hydrarch succession takes place in water.
C. The climax community is the community that is in near equilibrium with the immediate environment.
D. In newly cooled lava secondary succession occurs.

Pick out the correct option from (a) to (e).I. Primary succession begins in areas where natural communities have been destroyed.II. Hydrarch succession takes place in water.III. The climax communityis the community that is in near equilibrium with the immediate environment.IV. Newly cooled lava secondary succession.

Explain how does : (a) a primary succession start on a bare rock and reach a climax community? (b) the algal bloom eventually choke the water body in an industrial area?

Explain how does : (a) a primary succession start on a bare rock and reach a climax community? (b) the algal bloom eventually choke the water body in an industrial area?

Explain how does : (a) a primary succession start on a bare rock and reach a climax community? (b) the algal bloom eventually choke the water body in an industrial area?

(a) What is "population" according to you as a biology student ? (b) "The size of a population for any species is not a static parameter." Justify the statement with specific reference to fluctuations in the population density of a region in a given periods of time. OR (a ) What is hydrarch succession ? (b) Compare the pioneer species and climax communities of hydrarch and xerarch succession respectively. (c) List the factors upon which the type of invading pioneer species depend in secondary hydrarch succession. Why is the rate of this succession faster than that of primary succession ?

Read the following statements and state how many of them are true ? (P) primary succession , is a very slow process taking thousands of years for the climax to be reached . (Q) All succession whether taking place in water or land proceeds ti a similar climax community, the mesic. (R) As succession proceeds, the number and types of animals and decomposers also change. (S) Saprophytes are not given any place in the ecological pyramids as they play no role in the ecosystem.

(a) Primary succession takes a very long time for the occurrence in any region. (b) Secondary succession takes less time. (c) Forest destroyed by fire is an example for primary succession, (d) The development of plant community in a barren area is primary succession.