The Incubator made it possible to maintain a controlled environment for cell cultures because most modern incubators act as a petri dish but in a more controlled state.
The answer is
B
C
D
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Answer: the commercial organization and operation of vacations and visits to places of interest.
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ARCHAEA AND BACTERIA are the simplest organisms without nucleus.
These two organisms are prokaryotes, which means that their cells is not differentiated and they do no have cell membrane bounded organelles. They are both microscopic.