Question

. The oldest prokaryote is/are : *
1 point
a. Archaebacteria.
b. Cyanobacteria.
c. Blue-green alga.
d. Eubacteria​

Answer 1

Explanation:

C. Cyanobacteria .

this is correct answer .

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Answer 2

Archaea bacteria is the oldest prokaryote option (A) is the correct answer.

• Archaebacteria belong to a kingdom of single microorganisms, with no cell nucleus, they are evaluated to be the oldest prokaryotic organisms

• Archaebacteria are a group of microorganisms evaluated to be an ancient form of life that developed individually from the bacteria and blue-green algae, and they are occasionally categorised as a kingdom.

Hence, option A is the correct answer.