On the planet earth. They exist in what we call the "world", which holds all seen life.
Answer: Gray whales are the common ancestor of the Blue and Humpback whales.
Ancestors of Blue whale include: Gray?
Explanation:
The modern theory of chemical evolution is based on the assumption that on a primitive earth a mixture of simple chemicals assembled into more complex molecular systems, from which, eventually came the first functioning cell(s).
Answer:
Cells
Explanation:
As indivisible units of life, the cells of all organisms consist of four fundamental macromolecular components: nucleic acids, proteins, lipids and glycans. From the construction, modification and interaction of these components, the cell develops and functions.
<u><em>- Akito, Hope this helped :)</em></u>
