An organism is found in a deep-sea vent where the temperature is very high and the mineral content very unusual. The organism is unicellular, has no apparent nucleus, and has a cell wall but no peptidoglycan. This organism would be classified as which of the following types of organisms?
a) algae
b) bacteria
c) archaea
d) virus

Archaea is the group of single celled organisms which has no apparent nucleus that is why it is considered prokaryote
They thrive in extreme environmental conditions for example extreme pH,salinity and temperature
Archaea were initially classified as bacteria but since the differences in their cell type and organization it was given a different class
Archaea has a cell wall wall but no peptidoglycan whereas bacteria contains peptidoglycan so bacteria cannot be the option in given condition
In the condition no apparent nucleus is given but algae have a prominent nucleus so it cannot be the given organism
Viruses do not have a cell wall rather consists of cell coat so it cannot be the right option