Just like other cells, the part of the bacterium that is able to interact with its outside environment is its cell membrane. Generally, the main function of the cell membrane is for barrier and protection. This decides which molecules will be allowed to permeate or not. Hope this helps.
ANSWER: A. The sun is located at the centre of the universe
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The radar scanner is an aerial which rotates continuously. The aerial alternatley transmits and receives in quick successio
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