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.
Answer: Of all the branches of complex animals, sponges are the only group lacking TRUE TISSUE.
Explanation:
<span>The three types of mountains are volcanic, fold, and block.</span>
Answer:
Asexual reproduction happens when organisms divide to reproduce, whereas sexual reproduction requires two organisms to mate to produce offspring.
