Multiple Choice
Which of the following statements best explains why viruses are not considered alive in the context of organic chemistry?
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In the context of organic chemistry, what is a domain, and which of the following represents the three domains of life on Earth?
A
Protista, Fungi, Plantae
B
Bacteria, Archaea, Eukarya
C
Prokaryotes, Eukaryotes, Viruses
D
Animals, Plants, Fungi
Verified step by step guidance1
In organic chemistry, the term 'domain' often refers to a specific region of a molecule that has a distinct function or characteristic. However, in the context of biology, 'domain' refers to the highest taxonomic rank in the classification of life.
The concept of domains in biology was introduced to categorize all life forms based on fundamental differences in their cellular structures and genetic makeup.
The three domains of life on Earth are Bacteria, Archaea, and Eukarya. These domains represent the major divisions of life based on differences in ribosomal RNA sequences and other molecular characteristics.
Bacteria and Archaea are both prokaryotic domains, meaning their cells lack a nucleus and other membrane-bound organelles. Eukarya includes all eukaryotic organisms, which have cells with a nucleus and organelles.
The options given in the problem include various groups of organisms, but only Bacteria, Archaea, and Eukarya correctly represent the three domains of life.
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