Answer
-Predicted by the theory of evolution which all organisms are part of a lineage that can trace back to one popular ancestor.
-To construct this "phylogeny', biologists examined the sequences in a range of genetic material that all cells are bound to have. Domains of life are the Archaea, Bacteria, and Eukaryotes.
Work Step by Step
-The theory of evolution by natural selection is pretty much how an organism(s) changes over time resulting in the hereditary behavioral or physical traits.
-when constructing a "phylogeny", you pick the mist different or ancestral species to the one that shares a common ancestor with the prior species.
-the three domains of life: archaea, bacteria, and eukaryotic microorganisms
Bacteria
-has a cell wall
-sensitive to antibiotics
Archaea
-prokaryotic
-cell wall is made of peptidoglycan (a polymer made of sugars and amino acids that form a mesh-like layer outside the plasma membrane of most bacteria.
-sensitive to antibiotics
-mostly circular chromosome and plasmids in DNA
Eukaryotes
-is Prokaryotic
-Does not contain peptidoglycan
- not sensitive to antibiotics
