Synonyms: Anhydrous hydrogen chloride; Aqueous hydrogen chloride; Hydrochloric acid, Muriatic acid; HCl. OSHA IMIS Code Number: 1430. Chemical Abstracts Service (CAS) Registry Number: 7647-01-0. NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: MW4025000.
Difference between Archaea and Bacteria. Key Difference: Archaea are single-celled organisms that lack a nuclei and release methane as a product of metabolism. Bacteria are single-celled organisms that lack a nucleus, mitochondria, chloroplasts, golgibodies and ER.
Some archaea are autotrophs and others are heterotrophs. You might wonder why archaea and bacteria are divided into separate domains. After all, they are both unicellular prokaryotes. In the 1970s, a study revealed that the cellular structures of archaea are so different from bacteria they deserved their own domain.