Multiple choice

Which of the options best explains the existence of bacteria as the oldest organisms on the Earth?

  1. They are very small in size.

  2. They are not easily visible.

  3. They can survive harshest climates.

  4. They have a very strong structure.

  5. They have many special features, which protect them.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Yes, bacteria is one of t he simplest and oldest organisms on earth. Its simple body design makes it survive the harshest climates.

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