Micro Organisms
The unifying feature of the archaea that distinguishes them from the bacteria is

habitats which are extreme environments with regard to acidity
absence of a nuclear membrane temperature
cytoplasmic ribosomes that are 70S
presence of a cell wall containing a characteristic outer membrane

ANSWER DOWNLOAD EXAMIANS APP

Micro Organisms
Archeal cells usually do not contain peptidoglycan, rather contain pseudo-peptidoglycan which is mainly composed of

N-acetyltalosaminuronic acid and D-amino acids
N-acetylmuramic acid and D-amino acids
N-acetylmuramic acid and L-amino acids
N-acetyltalosaminuronic acid and L-amino acids

ANSWER DOWNLOAD EXAMIANS APP

Micro Organisms
Genetic and biochemical similarities between contemporary cyanobacteria and eukaryotic chloroplasts are accepted to mean that

eukaryotes evolved from archaea
oxygenic photosynthesis first evolved in eukaryotes
cyanobacteria arose from chloroplasts which escaped from plant cells
eukaryotes evolved from bacteria

ANSWER DOWNLOAD EXAMIANS APP