46. Which of the following does not come under taxon?
47. Assertion: Living organisms are regarded as closed systems.
Reason: Energy of living organisms can not be lost or gained from external environment.
48. Assertion : The species is reproductively isolated natural population.
Reason : Prokaryotes cannot be kept under differents species on the basis of reproductive isolation.
49. Assertion : Chemotaxonomy is classifying organisms at molecular level.
Reason : Cytotaxonomy is classifying organisms at cellular level.
50. Assertion: Bacteria, Protista do not have circulatory system.
Reason: These organisms live in moist and watery environment.
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