Which does not contribute to genetic variation mitosis, meiosis, crossing over, or random mating

mitosis

Explanation:

With mitosis, the results are having a "copy" of the mother cell, while in meiosis, crossing over(only happens in meiosis) or random mating, the genetic material of the "parents" or "mother cells" is divided and it is different in each daughter cell.

this transfer is call conjunction

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation: