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Which of the following organisms do not have a defined nucleus or organelles, nor do any of them show multi-cellular body designs?

Which of the following organisms do not have a defined nucleus or organelles, nor do any of them show multi-cellular body designs? Correct Answer Monera

Concept :

  • Monera does not have a defined nucleus or organelles, nor do any of them show multi-cellular body designs.
    • Some of them have cell walls while some do not have cell walls.
    • All organisms of this kingdom are microscopic.
    • The mode of nutrition of organisms in this group can be either by synthesizing their own food (autotrophic) or getting it from the environment (heterotrophic). 
    • It is classified into
      • Archaebacteria (Archae).
      • Eubacteria (Bacteria).
    • This group includes bacteria, blue-green algae or cyanobacteria, and mycoplasma.

Additional Information

Animalia

 

  • They are multicellular organisms which do not possess chlorophyll.
  • They are eukaryotic organisms.
  • Cell wall is absent.
  • Mode of nutrition is heterotrophic i.e. they depend on other organisms for food.

Fungi

  • Fungi are eukaryotic, non-vascular, non-motile and heterotrophic organisms.
  • They may be unicellular or filamentous.
  • They reproduce by means of spores.
  • Fungi exhibit the phenomenon of alternation of generation.
  • Fungi lack chlorophyll and hence cannot perform photosynthesis.

Protista

  • They are eukaryotic, which means they have a nucleus.
  • Most have mitochondria.
  • They can be parasites.
  • They all prefer aquatic or moist environments.

Related Questions

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