An organism that shows sexual reproduction but lacks a proper nucleus in its cells, can obtain nutrition in autotrophic as well as heterotrophic mode and possesses a distinct cell wall is

Mycoplasma

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Blue green algae

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Bacteria

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Protozoa

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Solution

The correct option is C Bacteria
Bacteria are the prokaryotic organisms which are placed under the kingdom monera. They do not have well-developed cellular structures like the nucleus, nuclear membrane, mitochondria, etc. The DNA is circular and double-stranded and present in the cytoplasm. It is a single-celled organism with the cell wall composed of peptidoglycan. Most bacteria are heterotrophic which some are autotrophic or chemotrophic bacteria and are capable of preparing their own food. Conjugation is the method of asexual reproduction.
Thus the correct answer is option C.

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(i) They have well defined nucleus.
(ii) Reproduction occurs by asexual methods only.
(iii) The cell wall is made up of chitin.
(iv) Locomotion occurs with the help of flagella, cilia, etc.
(v) Mode of nutrition may be autotrophic or heterotrophic.

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(i) All Monerans show multicellular body designs - Ashok
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