In which way is primary succession similar to secondary succession?

a. both occur where life already exists.
b. both are gradual.
c. both occur where no life exists.
d. both involve creating soil.

ANSWER:

that would be C. bc they both begin where no life exists

primary succession begins where no sign of life or soil is found.

secondary succession is where there is no sign of life, but soil is found.

~batman's wife

C.Both occur where no life exists.

Explanation:

An ecological succession involves changes in the biotic community of the ecosystem with respect to the changes occurring in the non-living factors of the ecosystem such as temperature, water, sunlight and calamity in a due coarse of time until the ecosystem attains stability.

A primary succession occurs in a region where no living species previously existed. It occurs in a region of retreating glacier and sites of volcanic eruptions. The region get colonized by the living species when the conditions of the environment becomes favorable.

A secondary succession occurs in a region where a region was previously occupied by the living species but the region was disturbed by the natural or man made disaster. The region will get recolonized due to the presence of precursors of life like left over seeds, stems and roots which can give birth to new plant colony.

On the basis of the above explanation, the primary succession is similar to secondary succession in a sense that both successions can occur in a land where no life exists.