Penicillin is an antibiotic that was discovered in 1928. Today, many species of bacteria have acquired resistance to penicilin This adaptation occurred as the result of

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:

other information encoded in your genes might distinguish you from the others in the group