CHILD DEVELOPMENT PEDAGOGY

Detailed explanation-1: -They are called archaea because they belong to the archaeal kingdom. They share some common characteristics with eukaryotes but are completely different from them. They are known as extremophiles because they can easily survive in generally harsh conditions such as the seafloor and volcanic vents.

Detailed explanation-2: -These organisms are today classified in the kingdom, Archaebacteria. Archaebacteria are found in extreme environments such as hot boiling water and thermal vents under conditions with no oxygen or highly acid environments.

Detailed explanation-3: -They live in the anoxic muds of marshes and at the bottom of the ocean, and even thrive in petroleum deposits deep underground. Some archaeans can survive the dessicating effects of extremely saline waters. One salt-loving group of archaea includes Halobacterium, a well-studied archaean.

Detailed explanation-4: -Archaebacteria belong to the kingdom Archaebacteria and the domain Archaea and are distinct life forms separate from the domains Eukarya (includes plants, fungi, animals, and protists) and Bacteria.

Detailed explanation-5: -Most extremophiles are microorganisms (and a high proportion of these are archaea), but this group also includes eukaryotes such as protists (e.g., algae, fungi and protozoa) and multicellular organisms. Archaea is the main group to thrive in extreme environments.