Answer:
Ecology is the study of ecosystems.
Explanation:
One of the visible feature is that the DNA in a cell is replicating then the most important is that they are splitting of getting divided and form into two identical cells.
The cell must double all the organelles and everything it contains so that when it splits in half the two daughter cells are the same as the original cell.
Answer: They are called Telomeres.
Explanation:
Telomeres is a region of repetitive nucleotide sequence present at each end of chromosomes that protect the internal regions of the chromosome, they are cap down in a small amount t in every DNA replication.
Telomeres are found in many eukaryotic species ranging from human beings to unicellular protists.
Answer:
Astronomers believe that the larger the star, the shorter its lifespan.