A medical laboratory detects bacteria in a patient's sample. According to the historical development of the classification system, in which kingdom would bacteria have been placed immediately after the three-kingdom system was proposed?
Protista
Classification systems evolved historically from two kingdoms (Plantae, Animalia) to more detailed groupings as microscopic organisms were studied in greater depth.
Ernst Haeckel proposed the three-kingdom system in 1866, adding Protista to accommodate unicellular organisms that did not fit cleanly into plants or animals. Bacteria, being unicellular microorganisms, were initially placed within Protista at this stage.
Only later, when Copeland proposed the four-kingdom system and Whittaker introduced the five-kingdom system, were bacteria separated into their own kingdom Monera based on their prokaryotic cell structure.
Hence, the correct answer is Protista.
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Important Questions from Biological Classification
Select the hierarchy (descending) of the taxonomic ranks using the codes given below:
A. Order
B. Genus
C. Class
D. Species
E. Family
Codes :
Mycoplasmas are different from the other prokaryotes by:
Taxonomic studies based on DNA are part of:
Nutritionally Albugo is
Litmus paper is obtained from which Lichen?
