According to endosymbiosis theory, the mitochondria was once free-living prokaryotic cell. The cell was engulfed by other cell (host cell) via the process of phagocytosis.
The “eaten” cell survived inside the host. The host cell provided a nutrition and safe environment to live and the future mitochondria produced energy that the host cell can use. Over time the organelle and the host cell have evolved together.
When new evidence or a new way of thinking is brought up in regards to a specific matter, if said person isn’t willing to change their ways of thinking or it becomes very personal to them, they will have a difficult time changing with the times. This could possibly hold back new discoveries and halt new findings in the scientific community.
A= U, G= C, T= A You can reverse it as well to find the codons
<span>Cephalochordates are animals from chordate subphylum which are distinguised to have all the characteristics of a chordate from their larval stage and is true to their adulthood. They are segmented marine animals having elongated bodies with notochords extended from head to tail. The notochord of these animals are persistently present throughout their lives. The answer to this question is letter C. "Notochord is present throughout their lives."</span>