Difference and similarity in archae and eubacteria
Answers
Explanation:
Three Major Domains of Life
Tree of Life
A phylogenetic tree traces the evolutionary history of organisms, and indicates common ancestors. We already see a major difference between archaea and bacteria from this classification: they have a different evolutionary history as they occupy very different places on the Tree of Life.
How was this Tree of Life composed? The sequence of 16s ribosomal ribonucleic acid (16s rRNA), a fundamental unit of ribosomes, was compared across organisms. This showed that the underlying genetic code for a component of ribosomes differed greatly between archaea, bacteria, and eukarya. Thus, they form three distinct branches of the Tree of Life.
There was a time when archaea weren't understood to be different from bacteria and, in fact, were erroneously named archaebacteria (and the Tree of Life was drawn wrong!). But they are definitely not bacteria, even though archaea and bacteria share some similarities. Archaea deserve their own branch on the Tree of Life.
Similarities Between Them
Archaea and bacteria are both prokaryotes, meaning they do not have a nucleus and lack membrane-bound organelles. They are tiny, single-cell organisms which cannot be seen by the naked human eye called microbes. When we look at them through a microscope, we find that archaea and bacteria resemble each other in shape and size. They exist as rods, cones, plates, and coils. Both archaea and bacteria have flagella, thread-like structures that allow organisms to move by propelling them through their environmen.
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Answer:
Explanation:
differences
One is the Archaea and the other is the Eubacteria. The main difference between the Archaea and Eubacteria is, Archaea is a single-celled bacterium that thrives in extreme conditions while eubacteria live and thrive in normal conditions. Archaea is the oldest bacteria ever known while the earth was formed.
similarities
In the past, archaea were classified as bacteria and were called archaebacteria . But it was discovered that archaea have a distinct evolutionary history and biochemistry compared with bacteria. The similarities are that archaea and eubacteria are prokaryotes — single-celled organisms that do not have a nucleus or organelles.