BIOLOGICAL CLASSIFICATION
VIRUSES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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presence/absence of nucleus
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mode of nutrition
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Either A or B
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None of the above
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Detailed explanation-1: -Bacteria and Archaea seem to have a lot in common at first. The organisms in these domains don’t have a nucleus and therefore are called prokaryotes, a combination of the Greek words ‘pro’ (before) and ‘karyon’ (nut or kernel). Just as the name implies, the domain Bacteria contains bacteria.
Detailed explanation-2: -Archaea and bacterial cells lack organelles or other internal membrane-bound structures. Therefore, unlike eukaryotes, archaea and bacteria do not have a nucleus separating their genetic material from the rest of the cell.
Detailed explanation-3: -Archaebacteria: Kingdom of extremist bacteria found in domain Archaea-cells without a nucleus that are ancient bacteria. They are named archaea which means “ancient things” because they often live in conditions that resemble earth 3.5 billion years ago.
Detailed explanation-4: -Organisms can be classified into one of three domains based on differences in the sequences of nucleotides in the cell’s ribosomal RNAs (rRNA), the cell’s membrane lipid structure, and its sensitivity to antibiotics. The three domains are the Archaea, the Bacteria, and the Eukarya.