Viruses do not have:
Correct answer: A. Fossil record
- A. Fossil record
- B. Traces in history
- C. Reproductive ability
- D. Nucleic acid
Explanation
Viruses do not have a fossil record because they lack hard structures such as bones, shells, or cell walls that can be preserved over time. They are made up only of nucleic acids and protein coats, which are too small and fragile to leave traces in rocks or sediments. In addition, their tiny size and dependence on living cells make it nearly impossible for them to be fossilized. Instead of fossils, scientists study the evolutionary history of viruses through their genetic material and by comparing it with that of their hosts.
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About Biodiversity and Variety of Life
Biological classification uses taxonomic ranks, binomial nomenclature and shared characteristics to organize life into kingdoms. The major groups include prokaryotes, protists, fungi, plants and animals, with comparisons based on cell type, cell wall, nutrition, body organization, reproduction and evolutionary relationships; prokaryotes lack a membrane-bound nucleus.
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