Question

Kingdom Monera includes
A. Prokaryotes only
B. Eukaryotes only
C. Both A and B
D. Mesokaryotes only

Answer 1

Hint:Organisms that do not have well-defined nuclei and organelles are known as prokaryotes while the eukaryotes have membrane-bound nuclei and organelles. All prokaryotes are unicellular.

Complete step by step solution:
Prokaryotes are unicellular organisms. They are the primitive organisms in which lysosomes, peroxisomes, microtubules, and endoplasmic reticulum are absent. They do not have a definite nucleus which includes bacteria and cyanobacteria (blue-green algae).
Prokaryotes are smaller than eukaryotes. In prokaryotes, asexual division occurs binary fission. They have only one chromosome. Examples include bacteria and archaea.
Eukaryotes include multicellular organisms. They have well-defined membrane-bound nuclei and other organisms. They have more than one number of chromosomes. Lysosomes, peroxisomes, microtubules, and endoplasmic reticulum are present in it. Protists, fungi, plants, and animals are examples of it.
Mesokaryotes are the organisms that are considered in between the nucleoid of the prokaryotes and the nucleus of the eukaryotes.
Kingdom Monera includes prokaryotes only because these are unicellular organisms and made up of single cells bound by a plasma membrane and lack membrane-bound organelles.
So, the correct answer is option (a) which is Prokaryotes only.

So, the correct answer is option (a) which is Prokaryotes only.

Note : Monerans are considered the most primitive organisms on Earth, all living things developed from them. Monera is either autotrophs, which make their food, or heterotrophs, which eat autotrophs or other heterotrophs because they can't make their food. This Kingdom includes all the primitive organisms.