The answer is :they passed on their genetic material to new cells when they reproduced.
Explanation : Well when cells undergo division , they pass on their genetic material , so that's the same way that bacteria passed and still passes it's genetic material by the process of rep
roduction.
Hope this helps :)
The correct answer is option Observations can be made from outside the "system".
The study of the plate tectonics allows the observation of the movement of the plate tectonics. These observation can be study to determine the pattern of the movement from outside the plate tectonics system and the event occurring due to plate tectonics can be predicted.
Idk the options but it could be genetic variation