The fossil record shows a sequence from simple bacteria to more complicated organisms through time, it is very reliable because it is physical evidence and by studying fossils, scientists can learn how much (or how little) organisms have changed as life developed on Earth.
Hey! they are usually single celled!
hope this helped xoxo
Explanation:
<h2 /><h2>I guess you translate this visual from Turkish to English</h2>
<h3>I couldn't find anything else.</h3>