Vestigial structures<span> are often homologous to </span>structures<span> that are functioning normally in other species</span>
Answer:
C. all living things are made of one or more cells.
Explanation:
Sounds like it.
Answer:
except option 2 all of them are applied
Explanation:
The first known single-celled organisms appeared on Earth about 3.5 billion years ago, roughly a billion years after Earth formed. More complex forms of life took longer to evolve, with the first multicellular animals not appearing until about 600 million years ago.
