Which living organism has a primitive structure and which one has an advanced? (Bacteria; Animal)

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Expert Solution

ANSWER: Bacteria are prokaryotic organisms which means they do not have membrane bound cell organelles such as Golgi apparatus, Endoplasmic reticulum and a well defined nucleus.

Prokaryotic organisms like Bacteria are unicellular.
Bacteria do not have higher level of differentiation of cells into tissues and organs.
Bacteria can be autotrophic or Heterotrophic.
Bacteria are representative of primitive organsisms on earth.

Whereas animals are representative of advanced level of body organization.

In animals cells are differentiated into tissues and organs which perform a specific function.
Contrary to primitive organisms like Bacteria, body organization may range from multicellular level to organ system level.
Locomotion and movement is also one of the distinct features of animals.

The advancement from such a primitive unicellular organsim to a highly advanced organsims, for example humans is probably a result of evolutionary process.

gladiator answered 1 year ago

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